{"id":742,"date":"2024-06-14T01:44:56","date_gmt":"2024-06-14T08:44:56","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/?p=742"},"modified":"2024-07-21T23:28:26","modified_gmt":"2024-07-22T06:28:26","slug":"c12%e6%96%b0%e5%8a%9f%e8%83%bd%e5%90%88%e9%9b%86%e4%b8%89%ef%bc%9a%e4%bd%bf%e7%94%a8%e4%bb%bb%e6%84%8f%e7%b1%bb%e5%9e%8b%e7%9a%84%e5%88%ab%e5%90%8d%e9%87%8d%e6%9e%84c%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/c12%e6%96%b0%e5%8a%9f%e8%83%bd%e5%90%88%e9%9b%86%e4%b8%89%ef%bc%9a%e4%bd%bf%e7%94%a8%e4%bb%bb%e6%84%8f%e7%b1%bb%e5%9e%8b%e7%9a%84%e5%88%ab%e5%90%8d%e9%87%8d%e6%9e%84c%e4%bb%a3%e7%a0%81\/","title":{"rendered":"C#12\u65b0\u529f\u80fd\u5408\u96c6\u4e09\uff1a\u4f7f\u7528\u4efb\u610f\u7c7b\u578b\u522b\u540d\u91cd\u6784C#\u4ee3\u7801"},"content":{"rendered":"<p><span style=\"font-size: 12pt;\"><em>\u672c\u6587\u7ffb\u8bd1\u4e8eDavid Pine\u7684\u8fd9\u7bc7\u6587\u7ae0: <a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/refactor-your-code-using-alias-any-type\/\">Refactor your code using alias any type<\/a><\/em>\u3002<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8fd9\u7bc7\u6587\u7ae0\u662f\u56db\u7bc7\u7cfb\u5217\u6587\u7ae0\u4e2d\u7684\u7b2c\u4e09\u7bc7\uff0c\u4e3b\u8981\u63a2\u8ba8<\/span><span data-contrast=\"auto\">C# 12<\/span><span data-contrast=\"auto\">\u7684\u5404\u79cd\u529f\u80fd\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8<\/span><span data-contrast=\"auto\">\u201c<\/span><span data-contrast=\"auto\">\u522b\u540d\u4efb\u4f55\u7c7b\u578b<\/span><span data-contrast=\"auto\">\u201d<\/span><span data-contrast=\"auto\">\u529f\u80fd\uff0c\u8be5\u529f\u80fd\u5141\u8bb8\u60a8\u4f7f\u7528<\/span><span data-contrast=\"auto\"> using <\/span><span data-contrast=\"auto\">\u6307\u4ee4\u4e3a\u4efb\u4f55\u7c7b\u578b\u521b\u5efa\u522b\u540d\u3002\u8fd9\u4e2a\u7cfb\u5217\u5df2\u7ecf\u521d\u5177\u89c4\u6a21<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"%1.\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:0,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><a href=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/c12%e6%96%b0%e5%8a%9f%e8%83%bd%e5%90%88%e9%9b%86%e4%ba%8c%ef%bc%9a%e4%bd%bf%e7%94%a8%e9%9b%86%e5%90%88%e8%a1%a8%e8%be%be%e5%bc%8f%e9%87%8d%e6%9e%84%e4%bb%a3%e7%a0%81\/\"><span data-contrast=\"auto\">\u4f7f\u7528\u4e3b\u6784\u9020\u51fd\u6570\u91cd\u6784<\/span><span data-contrast=\"auto\"> C# <\/span><span data-contrast=\"none\">\u4ee3\u7801<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"%1.\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:0,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/c12%e6%96%b0%e5%8a%9f%e8%83%bd%e5%90%88%e9%9b%86%e4%ba%8c%ef%bc%9a%e4%bd%bf%e7%94%a8%e9%9b%86%e5%90%88%e8%a1%a8%e8%be%be%e5%bc%8f%e9%87%8d%e6%9e%84%e4%bb%a3%e7%a0%81\/\"><span data-contrast=\"auto\">\u4f7f\u7528\u96c6\u5408\u8868\u8fbe\u5f0f\u91cd\u6784<\/span><span data-contrast=\"auto\"> C# <\/span><span data-contrast=\"none\">\u4ee3\u7801<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"%1.\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:0,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u4f7f\u7528\u4efb\u610f\u7c7b\u578b\u522b\u540d\u91cd\u6784<\/span><span data-contrast=\"auto\"> C# <\/span><span data-contrast=\"auto\">\u4ee3\u7801\uff08\u672c\u7bc7\u6587\u7ae0<\/span><span data-contrast=\"auto\">\uff09<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"%1.\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:0,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769242&quot;:[65533,0],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;%1.&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\">\u4f7f\u7528\u9ed8\u8ba4 lambda \u53c2\u6570\u91cd\u6784C#\u4ee3\u7801<\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u6240\u6709\u8fd9\u4e9b\u529f\u80fd\u90fd\u5c06\u7ee7\u7eed\u6211\u4eec\u7684\u65c5\u7a0b\uff0c\u4f7f\u6211\u4eec\u7684\u4ee3\u7801\u66f4\u5177\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd9\u4e9b\u88ab\u8ba4\u4e3a\u662f\u5f00\u53d1\u4eba\u5458\u5e94\u8be5\u77e5\u9053\u7684\u201c\u65e5\u5e38<\/span><span data-contrast=\"auto\"> C#<\/span><span data-contrast=\"auto\">\u201d\u529f\u80fd\u3002\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u5427<\/span><span data-contrast=\"auto\">\uff01<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">\u522b\u540d\u4efb\u610f\u7c7b\u578b<\/span><\/b><b><span data-contrast=\"auto\">*\ufe0f<\/span><\/b><b><span data-contrast=\"auto\">\u20e3<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">C# 12 <\/span><span data-contrast=\"auto\">\u5f15\u5165\u4e86\u4f7f\u7528<\/span><span data-contrast=\"auto\"> using <\/span><span data-contrast=\"auto\">\u6307\u4ee4\u4e3a\u4efb\u610f\u7c7b\u578b\u6dfb\u52a0\u522b\u540d\u7684\u529f\u80fd\u3002\u6b64\u529f\u80fd\u5141\u8bb8\u60a8\u6307\u5b9a\u6620\u5c04\u5230\u5176\u4ed6\u7c7b\u578b\u7684\u522b\u540d\u3002\u8fd9\u5305\u62ec\u5143\u7ec4\u7c7b\u578b\u3001\u6307\u9488\u7c7b\u578b\u3001\u6570\u7ec4\u7c7b\u578b\uff0c\u751a\u81f3\u975e\u5f00\u653e\u6cdb\u578b\u7c7b\u578b\uff0c\u6240\u6709\u8fd9\u4e9b\u7c7b\u578b\u90fd\u53ef\u4ee5\u5728\u60a8\u7684\u4ee3\u7801\u4e2d\u4f7f\u7528\u3002\u6b64\u529f\u80fd\u5728\u4ee5\u4e0b\u573a\u666f\u7279\u522b\u6709\u7528<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u5f53\u4f7f\u7528\u957f\u6216\u590d\u6742\u7684\u7c7b\u578b\u540d\u79f0\u65f6\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u5f53\u6d88\u9664\u7c7b\u578b\u6b67\u4e49\u5e76\u89e3\u51b3\u6f5c\u5728\u7684\u547d\u540d\u51b2\u7a81\u65f6\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u5f53\u5b9a\u4e49\u8981\u5728\u7a0b\u5e8f\u96c6\u4e2d\u5171\u4eab\u7684\u503c\u5143\u7ec4\u7c7b\u578b\u65f6\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u5f53\u5e0c\u671b\u901a\u8fc7\u4f7f\u7528\u66f4\u5177\u63cf\u8ff0\u6027\u7684\u540d\u79f0\u6765\u589e\u52a0\u4ee3\u7801\u7684\u6e05\u6670\u5ea6\u65f6<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u5b98\u65b9<\/span><span data-contrast=\"auto\"> C# <\/span><span data-contrast=\"auto\">\u6587\u6863\u63d0\u4f9b\u4e86\u5f88\u591a\u6709\u5173\u5982\u4f55\u4f7f\u7528\u6b64\u529f\u80fd\u7684\u793a\u4f8b\uff0c\u4f46\u6211\u5e76\u4e0d\u60f3\u5728\u6b64\u91cd\u590d\u8fd9\u4e9b\u793a\u4f8b\uff0c\u800c\u662f\u51b3\u5b9a\u7f16\u5199\u4e00\u4e2a\u6f14\u793a\u5e94\u7528\u7a0b\u5e8f\u6765\u793a\u8303\u8be5\u529f\u80fd\u7684\u5404\u4e2a\u65b9\u9762\u3002<\/span><\/p>\n<blockquote><p><span data-contrast=\"auto\">\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6b64\u529f\u80fd\u652f\u6301\u5927\u591a\u6570\u7c7b\u578b\uff0c\u4f46\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u9664\u5916\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u60a8\u65e0\u6cd5\u4e3a\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u8bbe\u7f6e\u522b\u540d\uff0c<\/span><span data-contrast=\"auto\"> C# <\/span><span data-contrast=\"auto\">\u7f16\u8bd1\u5668\u4f1a\u62a5\u544a\u9519\u8bef<\/span><span data-contrast=\"auto\"> CS9132<\/span><span data-contrast=\"auto\">\uff1a\u4f7f\u7528\u7684\u522b\u540d\u4e0d\u80fd\u662f\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u3002\u4ee5\u4e0b\u5185\u5bb9\u6458\u81ea\u529f\u80fd\u8bf4\u660e\uff0c\u4ee5\u5e2e\u52a9\u6f84\u6e05\u8fd9\u4e00\u70b9<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">\/\/ This is not legal.\r\n\/\/ Error CS9132: Using alias cannot be a nullable reference type\r\nusing X = string?;\r\n\r\n\/\/ This is legal.\r\n\/\/ The alias is to `List&lt;...&gt;` which is itself not a nullable\r\n\/\/ reference type itself, even though it contains one as a type argument.\r\nusing Y = System.Collections.Generic.List&lt;string?&gt;;\r\n\r\n\/\/ This is legal.\r\n\/\/ This is a nullable *value* type, not a nullable *reference* type.\r\nusing Z = int?;<\/code><\/pre>\n<\/blockquote>\n<p><b><span data-contrast=\"auto\">\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\uff1a<\/span><\/b><b><span data-contrast=\"auto\">UFO <\/span><\/b><b><span data-contrast=\"auto\">\u76ee\u51fb\u4e8b\u4ef6<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6f14\u793a\u5e94\u7528\u7a0b\u5e8f\u53ef\u5728<\/span><span data-contrast=\"auto\"> GitHub <\/span><span data-contrast=\"auto\">\u4e0a\u7684<\/span> <a href=\"https:\/\/github.com\/IEvangelist\/alias-any-type\"><span data-contrast=\"auto\">IEvangelist<\/span><span data-contrast=\"none\">\/alias-any-type<\/span><\/a> <span data-contrast=\"auto\">\u4e0a\u83b7\u53d6\u3002\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u63a7\u5236\u53f0\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u6a21\u62df<\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/Unidentified_flying_object\"><span data-contrast=\"auto\">\u4e0d\u660e\u98de\u884c\u7269<\/span><span data-contrast=\"none\"> (UFO)<\/span><\/a> <span data-contrast=\"auto\">\u76ee\u51fb\u4e8b\u4ef6\u3002\u5982\u679c\u60a8\u60f3\u5728\u672c\u5730\u6267\u884c\uff0c\u53ef\u4ee5\u5728\u60a8\u9009\u62e9\u7684\u5de5\u4f5c\u76ee\u5f55\u4e2d\u4f7f\u7528\u4ee5\u4e0b\u4efb\u4f55\u4e00\u79cd\u65b9\u6cd5<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">\u4f7f\u7528<\/span><\/b><b><span data-contrast=\"auto\"> Git CLI\uff1a<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">git clone https:\/\/github.com\/IEvangelist\/alias-any-type.git<\/code><\/pre>\n<p><b><span data-contrast=\"auto\">\u4f7f\u7528<\/span><\/b><b><span data-contrast=\"auto\"> GitHub CLI\uff1a<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">gh repo clone IEvangelist\/alias-any-type<\/code><\/pre>\n<p><b><span data-contrast=\"auto\">\u4e0b\u8f7d<\/span><\/b><b><span data-contrast=\"auto\"> zip <\/span><\/b><b><span data-contrast=\"auto\">\u6587\u4ef6\uff1a<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u5982\u679c\u60a8\u60f3\u8981\u4e0b\u8f7d\u6e90\u4ee3\u7801\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b<\/span><span data-contrast=\"auto\"> URL <\/span><span data-contrast=\"auto\">\u83b7\u53d6\u4e00\u4e2a<\/span><span data-contrast=\"auto\"> zip <\/span><span data-contrast=\"auto\">\u6587\u4ef6<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Unidentified_flying_object\"><span data-contrast=\"auto\">IEvangelist<\/span><span data-contrast=\"none\">\/alias-any-type source zip<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">\u82e5\u8981\u8fd0\u884c\u8be5\u5e94\u7528\u7a0b\u5e8f\uff0c\u8bf7\u4ece\u6839\u76ee\u5f55\u6267\u884c\u4ee5\u4e0b<\/span><span data-contrast=\"auto\"> .NET CLI <\/span><span data-contrast=\"auto\">\u547d\u4ee4<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">dotnet run --project .\/src\/Alias.AnyType.csproj<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u5f53\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u65f6\uff0c\u5b83\u4f1a\u5728\u63a7\u5236\u53f0\u4e0a\u6253\u5370\u4e00\u6761\u4ecb\u7ecd\uff0c\u5e76\u7b49\u5f85\u7528\u6237\u8f93\u5165\u540e\u518d\u7ee7\u7eed<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-start.png\"><img decoding=\"async\" class=\"alignnone size-full wp-image-743\" src=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-start.png\" alt=\"Image app start\" width=\"1931\" height=\"591\" srcset=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-start.png 1931w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-start-300x92.png 300w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-start-1024x313.png 1024w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-start-768x235.png 768w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-start-1536x470.png 1536w\" sizes=\"(max-width: 1931px) 100vw, 1931px\" \/><\/a><\/p>\n<p><span data-contrast=\"auto\">\u6309\u4e0b\u4efb\u610f\u952e\uff08\u4f8b\u5982<\/span><span data-contrast=\"auto\"> Enter <\/span><span data-contrast=\"auto\">\u952e\uff09\u540e\uff0c\u5e94\u7528\u4f1a\u968f\u673a\u751f\u6210\u6709\u6548\u5750\u6807\uff08\u7eac\u5ea6\u548c\u7ecf\u5ea6\uff09\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5750\u6807\u68c0\u7d22\u4e0e\u8be5\u5750\u6807\u76f8\u5173\u7684\u5730\u7406\u7f16\u7801\u5143\u6570\u636e\u3002\u5750\u6807\u4ee5\u5ea6<\/span><span data-contrast=\"auto\">&#8211;<\/span><span data-contrast=\"auto\">\u5206<\/span><span data-contrast=\"auto\">&#8211;<\/span><span data-contrast=\"auto\">\u79d2\u683c\u5f0f\u8868\u793a\uff08\u5305\u62ec\u57fa\u6570\uff09\u3002\u5f53\u5e94\u7528\u8fd0\u884c\u65f6\uff0c\u4f1a\u8ba1\u7b97\u751f\u6210\u7684\u5750\u6807\u4e4b\u95f4\u7684\u8ddd\u79bb\u5e76\u5c06\u5176\u62a5\u544a\u4e3a<\/span><span data-contrast=\"auto\"> UFO <\/span><span data-contrast=\"auto\">\u76ee\u51fb\u4e8b\u4ef6<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-run.png\"><img decoding=\"async\" class=\"alignnone size-full wp-image-744\" src=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-run.png\" alt=\"Image app run\" width=\"1630\" height=\"1227\" srcset=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-run.png 1630w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-run-300x226.png 300w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-run-1024x771.png 1024w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-run-768x578.png 768w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/app-run-1536x1156.png 1536w\" sizes=\"(max-width: 1630px) 100vw, 1630px\" \/><\/a><\/p>\n<p><span data-contrast=\"auto\">\u82e5\u8981\u505c\u6b62\u5e94\u7528\u7a0b\u5e8f\uff0c\u8bf7\u6309<\/span><span data-contrast=\"auto\"> Ctrl + C <\/span><span data-contrast=\"auto\">\u952e\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u867d\u7136\u8fd9\u4e2a\u5e94\u7528\u7a0b\u5e8f\u5f88\u7b80\u5355\uff0c\u4f46\u5b83\u786e\u5b9e\u5305\u542b\u4e86\u5176\u4ed6\u4e00\u4e9b\u4e0e\u6211\u4eec\u672c\u7bc7\u6587\u7ae0\u91cd\u70b9\u4e0d\u4e00\u5b9a\u76f8\u5173\u7684<\/span><span data-contrast=\"auto\"> C# <\/span><span data-contrast=\"auto\">\u4ee3\u7801\u3002\u6211\u4e00\u5b9a\u4f1a\u5c3d\u91cf\u5c11\u8c08\u5916\u56f4\u4e3b\u9898\uff0c\u4f46\u5f53\u6211\u8ba4\u4e3a\u5b83\u4eec\u5f88\u91cd\u8981\u65f6\uff0c\u6211\u4f1a\u6d89\u53ca\u5b83\u4eec<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">\u4ee3\u7801\u6f14\u7ec3<\/span><\/b><b><span data-contrast=\"auto\">\ud83d\udc40<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6211\u4eec\u5c06\u901a\u8fc7\u672c\u8282\u4e00\u8d77\u4e86\u89e3\u4ee3\u7801\u5e93\u3002\u6211\u60f3\u91cd\u70b9\u4ecb\u7ecd\u4e00\u4e0b\u4ee3\u7801\u4e2d\u7684\u51e0\u4e2a\u6709\u8da3\u65b9\u9762\uff0c\u5305\u62ec\u9879\u76ee\u6587\u4ef6\u3001<\/span><span data-contrast=\"auto\">GlobalUsings.cs<\/span><span data-contrast=\"auto\">\u3001\u4e00\u4e9b\u6269\u5c55\u548c<\/span><span data-contrast=\"auto\"> Program.cs <\/span><span data-contrast=\"auto\">\u6587\u4ef6\u3002\u5728\u53ef\u7528\u7684\u4ee3\u7801\u4e2d\uff0c\u6709\u4e9b\u5185\u5bb9\u6211\u4eec\u4e0d\u4f1a\u4ecb\u7ecd\uff0c\u4f8b\u5982\u54cd\u5e94\u6a21\u578b\u548c\u51e0\u4e2a\u5b9e\u7528\u65b9\u6cd5<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">\u2514\u2500\u2500\u2500\ud83d\udcc2 src\r\n     \u251c\u2500\u2500\u2500\ud83d\udcc2 Extensions\r\n     \u2502    \u2514\u2500\u2500\u2500 CoordinateExtensions.cs\r\n     \u251c\u2500\u2500\u2500\ud83d\udcc2 ResponseModels\r\n     \u2502    \u251c\u2500\u2500\u2500 GeoCode.cs\r\n     \u2502    \u251c\u2500\u2500\u2500 Informative.cs\r\n     \u2502    \u2514\u2500\u2500\u2500 LocalityInfo.cs\r\n     \u251c\u2500\u2500\u2500 Alias.AnyType.csproj\r\n     \u251c\u2500\u2500\u2500 CoordinateGeoCodePair.cs\r\n     \u251c\u2500\u2500\u2500 GlobalUsings.cs\r\n     \u251c\u2500\u2500\u2500 Program.cs\r\n     \u251c\u2500\u2500\u2500 Program.Http.cs\r\n     \u2514\u2500\u2500\u2500 Program.Utils.cs<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b\u9879\u76ee\u6587\u4ef6<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p>&lt;Project Sdk=&#8221;Microsoft.NET.Sdk&#8221;&gt;<\/p>\n<p>&lt;PropertyGroup&gt;\n&lt;OutputType&gt;Exe&lt;\/OutputType&gt;\n&lt;TargetFramework&gt;net8.0&lt;\/TargetFramework&gt;\n&lt;ImplicitUsings&gt;enable&lt;\/ImplicitUsings&gt;\n&lt;Nullable&gt;enable&lt;\/Nullable&gt;\n&lt;\/PropertyGroup&gt;<\/p>\n<p>&lt;ItemGroup&gt;\n&lt;Using Include=&#8221;System.Console&#8221; Static=&#8221;true&#8221; \/&gt;<\/p>\n<p>&lt;Using Include=&#8221;System.Diagnostics&#8221; \/&gt;\n&lt;Using Include=&#8221;System.Net.Http.Json&#8221; \/&gt;\n&lt;Using Alias=&#8221;AsyncCancelable&#8221;\nInclude=&#8221;System.Runtime.CompilerServices.EnumeratorCancellationAttribute&#8221; \/&gt;\n&lt;Using Include=&#8221;System.Text&#8221; \/&gt;\n&lt;Using Include=&#8221;System.Text.Json.Serialization&#8221; \/&gt;\n&lt;Using Include=&#8221;System.Text.Json&#8221; \/&gt;\n&lt;\/ItemGroup&gt;<\/p>\n<p>&lt;\/Project&gt;<\/p>\n<p><span data-contrast=\"auto\">\u8fd9\u91cc\u8981\u6ce8\u610f\u7684\u7b2c\u4e00\u4ef6\u4e8b\u662f\uff0c<\/span><span data-contrast=\"auto\">ImplicitUsings <\/span><span data-contrast=\"auto\">\u5c5e\u6027\u8bbe\u7f6e\u4e3a<\/span><span data-contrast=\"auto\">enable<\/span><span data-contrast=\"auto\">\u3002\u6b64\u529f\u80fd\u81ea<\/span><span data-contrast=\"auto\"> C# 10 <\/span><span data-contrast=\"auto\">\u4ee5\u6765\u5c31\u5df2\u7ecf\u5b58\u5728\u4e86\uff0c\u5b83\u4f7f\u76ee\u6807<\/span><span data-contrast=\"auto\"> SDK<\/span><span data-contrast=\"auto\">\uff08\u5728\u672c\u4f8b\u4e2d\u4e3a<\/span><span data-contrast=\"auto\"> Microsoft.NET.Sdk<\/span><span data-contrast=\"auto\">\uff09\u80fd\u591f\u9ed8\u8ba4\u9690\u5f0f\u5305\u542b\u4e00\u7ec4\u547d\u540d\u7a7a\u95f4\u3002\u4e0d\u540c\u7684<\/span><span data-contrast=\"auto\"> SDK <\/span><span data-contrast=\"auto\">\u5305\u542b\u4e0d\u540c\u7684\u9ed8\u8ba4\u547d\u540d\u7a7a\u95f4\uff0c\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/project-sdk\/overview#implicit-using-directives\"><span data-contrast=\"none\">\u9690\u5f0f\u4f7f\u7528\u6307\u4ee4<\/span><\/a><span data-contrast=\"auto\">\u6587\u6863<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">Implicit Using<\/span><\/b><b><span data-contrast=\"auto\">\u6307\u4ee4<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">ImplicitUsing <\/span><span data-contrast=\"auto\">\u5143\u7d20\u662f<\/span><span data-contrast=\"auto\"> MS Build <\/span><span data-contrast=\"auto\">\u7684\u4e00\u9879\u529f\u80fd\uff0c\u800c<\/span><span data-contrast=\"auto\"> global <\/span><span data-contrast=\"auto\">\u5173\u952e\u5b57\u662f<\/span><span data-contrast=\"auto\"> C# <\/span><span data-contrast=\"auto\">\u8bed\u8a00\u7684\u4e00\u9879\u529f\u80fd\u3002\u65e2\u7136\u6211\u4eec\u5df2\u9009\u62e9\u4f7f\u7528<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/csharp\/language-reference\/keywords\/using-directive#global-modifier\"><span data-contrast=\"auto\">global using<\/span><span data-contrast=\"none\">\u529f\u80fd<\/span><\/a><span data-contrast=\"auto\">\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u81ea\u5df1\u7684\u6307\u4ee4\u6765\u5229\u7528\u6b64\u529f\u80fd\u3002\u6dfb\u52a0\u8fd9\u4e9b\u6307\u4ee4\u7684\u65b9\u6cd5\u4e4b\u4e00\u662f\u5411<\/span><span data-contrast=\"auto\"> ItemGroup <\/span><span data-contrast=\"auto\">\u6dfb\u52a0<\/span><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/core\/project-sdk\/msbuild-props#using\"><span data-contrast=\"auto\">Using <\/span><span data-contrast=\"none\">\u5143\u7d20<\/span><\/a><span data-contrast=\"auto\">\u3002\u4e00\u4e9b<\/span><span data-contrast=\"auto\"> using <\/span><span data-contrast=\"auto\">\u6307\u4ee4\u5728<\/span><span data-contrast=\"auto\"> Static <\/span><span data-contrast=\"auto\">\u5c5e\u6027\u8bbe\u7f6e\u4e3a<\/span><span data-contrast=\"auto\"> true <\/span><span data-contrast=\"auto\">\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u7684\u6240\u6709\u9759\u6001\u6210\u5458\u90fd\u53ef\u4ee5\u65e0\u6761\u4ef6\u4f7f\u7528<\/span><span data-contrast=\"auto\"> &#8211; <\/span><span data-contrast=\"auto\">\u7a0d\u540e\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/span><span data-contrast=\"auto\">Alias <\/span><span data-contrast=\"auto\">\u5c5e\u6027\u7528\u4e8e\u4e3a\u7c7b\u578b\u521b\u5efa\u522b\u540d\uff0c\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4e3a<\/span><span data-contrast=\"auto\"> System.Runtime.CompilerServices.EnumeratorCancellationAttribute <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u6307\u5b9a\u4e86<\/span><span data-contrast=\"auto\"> AsyncCancelable <\/span><span data-contrast=\"auto\">\u522b\u540d\u3002\u5728\u6211\u4eec\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528<\/span><span data-contrast=\"auto\"> AsyncCancelable <\/span><span data-contrast=\"auto\">\u4f5c\u4e3a<\/span><span data-contrast=\"auto\"> EnumeratorCancellation <\/span><span data-contrast=\"auto\">\u5c5e\u6027\u7684\u7c7b\u578b\u522b\u540d\u3002\u5176\u4ed6<\/span><span data-contrast=\"auto\"> Using <\/span><span data-contrast=\"auto\">\u5143\u7d20\u4e3a\u5176\u76f8\u5e94\u7684\u547d\u540d\u7a7a\u95f4\u521b\u5efa\u975e\u9759\u6001\u548c\u975e\u522b\u540d\u7684<\/span><span data-contrast=\"auto\">global using <\/span><span data-contrast=\"auto\">\u6307\u4ee4<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">\u4e00\u79cd\u65b0\u5174\u6a21\u5f0f<\/span><\/b> <b><span data-contrast=\"auto\">\ud83e\udde9<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6211\u4eec\u5f00\u59cb\u5728\u73b0\u4ee3<\/span><span data-contrast=\"auto\"> .NET <\/span><span data-contrast=\"auto\">\u4ee3\u7801\u5e93\u4e2d\u770b\u5230\u4e00\u79cd\u5e38\u89c1\u7684\u6a21\u5f0f\uff0c\u5373\u5f00\u53d1\u4eba\u5458\u5b9a\u4e49\u4e00\u4e2a<\/span><span data-contrast=\"auto\"> GlobalUsings.cs <\/span><span data-contrast=\"auto\">\u6587\u4ef6\u6765\u5c06\u6240\u6709\uff08\u6216\u5927\u591a\u6570\uff09<\/span><span data-contrast=\"auto\">using<\/span><span data-contrast=\"auto\">\u6307\u4ee4\u5c01\u88c5\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d\u3002\u6b64\u6f14\u793a\u5e94\u7528\u7a0b\u5e8f\u9075\u5faa\u6b64\u6a21\u5f0f\uff0c\u63a5\u4e0b\u6765\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u8be5\u6587\u4ef6<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">\/\/ Ensures that all types within these namespaces are globally available.\r\nglobal using Alias.AnyType;\r\nglobal using Alias.AnyType.Extensions;\r\nglobal using Alias.AnyType.ResponseModels;\r\n\r\n\/\/ Expose all static members of math.\r\nglobal using static System.Math;\r\n\r\n\/\/ Alias a coordinates object.\r\nglobal using Coordinates = (double Latitude, double Longitude);\r\n\r\n\/\/ Alias representation of degrees-minutes-second (DMS).\r\nglobal using DMS = (int Degree, int Minute, double Second);\r\n\r\n\/\/ Alias representation of various distances in different units of measure.\r\nglobal using Distance = (double Meters, double Kilometers, double Miles);\r\n\r\n\/\/ Alias a stream of coordinates represented as an async enumerable.\r\nglobal using CoordinateStream = System.Collections.Generic.IAsyncEnumerable&lt;\r\n    Alias.AnyType.CoordinateGeoCodePair&gt;;\r\n\r\n\/\/ Alias the CTS, making it simply \"Signal\".\r\nglobal using Signal = System.Threading.CancellationTokenSource;<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u6b64\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u5185\u5bb9\u90fd\u662f<\/span><span data-contrast=\"auto\">global using<\/span><span data-contrast=\"auto\">\u6307\u4ee4\uff0c\u4f7f\u522b\u540d\u7c7b\u578b\u3001\u9759\u6001\u6210\u5458\u6216\u547d\u540d\u7a7a\u95f4\u5728\u6574\u4e2a\u9879\u76ee\u4e2d\u90fd\u53ef\u7528\u3002\u524d\u4e09\u4e2a\u6307\u4ee4\u7528\u4e8e\u516c\u5171\u547d\u540d\u7a7a\u95f4\uff0c\u5b83\u4eec\u5728\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u591a\u4e2a\u4f4d\u7f6e\u4f7f\u7528\u3002\u4e0b\u4e00\u4e2a\u6307\u4ee4\u662f<\/span><span data-contrast=\"auto\"> System.Math <\/span><span data-contrast=\"auto\">\u547d\u540d\u7a7a\u95f4\u7684<\/span><span data-contrast=\"auto\">global using static <\/span><span data-contrast=\"auto\">\u6307\u4ee4\uff0c\u5b83\u4f7f<\/span><span data-contrast=\"auto\"> Math <\/span><span data-contrast=\"auto\">\u7684\u6240\u6709\u9759\u6001\u6210\u5458\u90fd\u53ef\u4ee5\u65e0\u6761\u4ef6\u4f7f\u7528\u3002\u5176\u4f59\u6307\u4ee4\u662f<\/span><span data-contrast=\"auto\">global using<\/span><span data-contrast=\"auto\">\u6307\u4ee4\uff0c\u5b83\u4eec\u4e3a\u5404\u79cd\u7c7b\u578b\u521b\u5efa\u522b\u540d\uff0c\u5305\u62ec\u51e0\u4e2a\u5143\u7ec4\u3001\u4e00\u4e2a\u5750\u6807\u6d41\u548c\u4e00\u4e2a<\/span><span data-contrast=\"auto\"> CancellationTokenSource<\/span><span data-contrast=\"auto\">\uff0c\u73b0\u5728\u53ef\u4ee5\u901a\u8fc7<\/span><span data-contrast=\"auto\"> Signal <\/span><span data-contrast=\"auto\">\u8f7b\u677e\u5f15\u7528\u5b83\u4eec<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u9700\u8981\u8003\u8651\u7684\u4e00\u4ef6\u4e8b\u662f\uff0c\u5f53\u60a8\u5b9a\u4e49\u4e00\u4e2a\u5143\u7ec4\u522b\u540d\u7c7b\u578b\u65f6\uff0c\u5982\u679c\u9700\u8981\u6dfb\u52a0\u884c\u4e3a\u6216\u5176\u4ed6\u5c5e\u6027\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06\u5176\u8f6c\u6362\u4e3a<\/span><span data-contrast=\"auto\">record<\/span><span data-contrast=\"auto\">\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u4ee5\u540e\u60a8\u53ef\u80fd\u60f3\u4e3a<\/span><span data-contrast=\"auto\"> Coordinates <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u6dfb\u52a0\u4e00\u4e9b\u529f\u80fd\uff0c\u5e76\u4e14\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06\u5176\u66f4\u6539\u4e3a<\/span><span data-contrast=\"auto\">record<\/span><span data-contrast=\"auto\">\u7c7b\u578b<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">namespace Alias.AnyType;\r\n\r\npublic readonly record struct Coordinates(\r\n    double Latitude, \r\n    double Longitude);<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u5f53\u60a8\u5b9a\u4e49\u522b\u540d\u65f6\uff0c\u60a8\u5b9e\u9645\u4e0a\u5e76\u4e0d\u662f\u5728\u521b\u5efa\u7c7b\u578b\uff0c\u800c\u662f\u5728\u521b\u5efa\u5f15\u7528\u73b0\u6709\u7c7b\u578b\u7684\u540d\u79f0\u3002\u5bf9\u4e8e\u5143\u7ec4\uff0c\u60a8\u6b63\u5728\u5b9a\u4e49\u503c\u5143\u7ec4\u7684\u5f62\u72b6\u3002\u5f53\u60a8\u4e3a\u6570\u7ec4\u7c7b\u578b\u6dfb\u52a0\u522b\u540d\u65f6\uff0c\u60a8\u4e0d\u662f\u5728\u521b\u5efa\u65b0\u7684\u6570\u7ec4\u7c7b\u578b\uff0c\u800c\u662f\u5728\u4e3a\u8be5\u7c7b\u578b\u6dfb\u52a0\u53ef\u80fd\u66f4\u5177\u63cf\u8ff0\u6027\u7684\u540d\u79f0\u3002\u4f8b\u5982\uff0c\u5f53\u6211\u5b9a\u4e49\u8fd4\u56de<\/span><span data-contrast=\"auto\"> IAsyncEnumerable&lt;CoordinateGeoCodePair&gt; <\/span><span data-contrast=\"auto\">\u7684<\/span><span data-contrast=\"auto\"> API <\/span><span data-contrast=\"auto\">\u65f6\uff0c\u9700\u8981\u7f16\u5199\u5927\u91cf\u4ee3\u7801\u3002\u800c\u73b0\u5728\uff0c\u6211\u53ef\u4ee5\u5728\u6574\u4e2a\u4ee3\u7801\u5e93\u4e2d\u5c06\u5176\u8fd4\u56de\u7c7b\u578b\u5f15\u7528\u4e3a<\/span><span data-contrast=\"auto\"> CoordinateStream\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><b><span data-contrast=\"auto\">\u5f15\u7528\u522b\u540d<\/span><\/b><b><span data-contrast=\"auto\">\ud83d\udcda<\/span><\/b><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u6211\u4eec\u5b9a\u4e49\u4e86\u51e0\u4e2a\u522b\u540d\uff0c\u4e00\u4e9b\u5728\u9879\u76ee\u6587\u4ef6\u4e2d\uff0c\u53e6\u4e00\u4e9b\u5728<\/span><span data-contrast=\"auto\"> GlobalUsings.cs <\/span><span data-contrast=\"auto\">\u6587\u4ef6\u4e2d\u3002\u8ba9\u6211\u4eec\u770b\u770b\u8fd9\u4e9b\u522b\u540d\u5728\u4ee3\u7801\u5e93\u4e2d\u662f\u5982\u4f55\u4f7f\u7528\u7684\u3002\u9996\u5148\u67e5\u770b\u9876\u5c42<\/span><span data-contrast=\"auto\"> Program.cs <\/span><span data-contrast=\"auto\">\u6587\u4ef6<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">using Signal signal = GetCancellationSignal();\r\n\r\nWriteIntroduction();\r\n\r\ntry\r\n{\r\n    Coordinates? lastObservedCoordinates = null;\r\n\r\n    await foreach (var coordinate\r\n        in GetCoordinateStreamAsync(signal.Token))\r\n    {\r\n        (Coordinates coordinates, GeoCode geoCode) = coordinate;\r\n\r\n        \/\/ Use extension method, that extends the aliased type.\r\n        var cardinalizedCoordinates = coordinates.ToCardinalizedString();\r\n\r\n        \/\/ Write UFO coordinate details to the console.\r\n        WriteUfoCoordinateDetails(coordinates, cardinalizedCoordinates, geoCode);\r\n\r\n        \/\/ Write travel alert, including distance traveled.\r\n        WriteUfoTravelAlertDetails(coordinates, lastObservedCoordinates);\r\n\r\n        await Task.Delay(UfoSightingInterval, signal.Token);\r\n\r\n        lastObservedCoordinates = coordinates;\r\n    }\r\n}\r\ncatch (Exception ex) when (Debugger.IsAttached)\r\n{\r\n    \/\/ https:\/\/x.com\/davidpine7\/status\/1415877304383950848\r\n    _ = ex;\r\n    Debugger.Break();\r\n}<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u4e0a\u8ff0\u4ee3\u7801\u7247\u6bb5\u663e\u793a\u4e86\u5982\u4f55\u4f7f\u7528<\/span><span data-contrast=\"auto\"> Signal <\/span><span data-contrast=\"auto\">\u522b\u540d\u521b\u5efa<\/span><span data-contrast=\"auto\"> CancellationTokenSource <\/span><span data-contrast=\"auto\">\u5b9e\u4f8b\u3002\u60a8\u53ef\u80fd\u77e5\u9053\uff0c<\/span><span data-contrast=\"auto\">CancellationTokenSource <\/span><span data-contrast=\"auto\">\u7c7b\u662f<\/span><span data-contrast=\"auto\"> IDisposable <\/span><span data-contrast=\"auto\">\u7684\u4e00\u4e2a\u5b9e\u73b0\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<\/span><span data-contrast=\"auto\"> using <\/span><span data-contrast=\"auto\">\u8bed\u53e5\u6765\u786e\u4fdd<\/span><span data-contrast=\"auto\"> Signal <\/span><span data-contrast=\"auto\">\u5b9e\u4f8b\u5728\u8d85\u51fa\u4f5c\u7528\u57df\u65f6\u5f97\u5230\u6b63\u786e\u5904\u7f6e\u3002\u60a8\u7684<\/span><span data-contrast=\"auto\"> IDE <\/span><span data-contrast=\"auto\">\u7406\u89e3\u8fd9\u4e9b\u522b\u540d\uff0c\u5f53\u60a8\u5c06\u9f20\u6807\u60ac\u505c\u5728\u5b83\u4eec\u4e0a\u9762\u65f6\uff0c\u60a8\u5c06\u770b\u5230\u5b83\u4eec\u6240\u4ee3\u8868\u7684\u5b9e\u9645\u7c7b\u578b\u3002\u8bf7\u67e5\u770b\u4ee5\u4e0b\u5c4f\u5e55\u622a\u56fe<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover.png\"><img decoding=\"async\" class=\"alignnone size-full wp-image-745\" src=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover.png\" alt=\"Image alias hover\" width=\"3085\" height=\"1321\" srcset=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover.png 3085w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-300x128.png 300w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-1024x438.png 1024w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-768x329.png 768w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-1536x658.png 1536w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-2048x877.png 2048w\" sizes=\"(max-width: 3085px) 100vw, 3085px\" \/><\/a><\/p>\n<p><span data-contrast=\"auto\">\u5728\u8fdb\u5165<\/span><span data-contrast=\"auto\"> try \/ catch <\/span><span data-contrast=\"auto\">\u4e4b\u524d\uff0c\u4f1a\u901a\u8fc7<\/span><span data-contrast=\"auto\">WriteIntroduction <\/span><span data-contrast=\"auto\">\u8c03\u7528\u5c06\u7b80\u4ecb\u5199\u5165\u63a7\u5236\u53f0\u3002<\/span><span data-contrast=\"auto\">try <\/span><span data-contrast=\"auto\">\u5757\u5305\u542b\u4e00\u4e2a<\/span><span data-contrast=\"auto\"> await foreach <\/span><span data-contrast=\"auto\">\u5faa\u73af\uff0c\u8be5\u5faa\u73af\u904d\u5386\u4e00\u4e2a<\/span><span data-contrast=\"auto\"> IAsyncEnumerable&lt;CoordinateGeoCodePair&gt;<\/span><span data-contrast=\"auto\">\u65b9\u6cd5<\/span><span data-contrast=\"auto\">\u3002GetCoordinateStreamAsync <\/span><span data-contrast=\"auto\">\u65b9\u6cd5\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\u5b9a\u4e49\u3002\u6211\u53d1\u73b0\u81ea\u5df1\u5728\u7f16\u5199\u9876\u7ea7\u7a0b\u5e8f\u65f6\u66f4\u7ecf\u5e38\u5229\u7528\u90e8\u5206\u7c7b\u529f\u80fd\uff0c\u56e0\u4e3a\u5b83\u6709\u52a9\u4e8e\u9694\u79bb\u95ee\u9898\u3002\u6240\u6709\u57fa\u4e8e<\/span><span data-contrast=\"auto\"> HTTP <\/span><span data-contrast=\"auto\">\u7684\u529f\u80fd\u90fd\u5728<\/span><span data-contrast=\"auto\"> Program.Http.cs <\/span><span data-contrast=\"auto\">\u6587\u4ef6\u4e2d\u5b9a\u4e49\uff0c\u8ba9\u6211\u4eec\u91cd\u70b9\u4ecb\u7ecd<\/span><span data-contrast=\"auto\"> GetCoordinateStreamAsync <\/span><span data-contrast=\"auto\">\u65b9\u6cd5<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">static async CoordinateStream GetCoordinateStreamAsync(\r\n    [AsyncCancelable] CancellationToken token)\r\n{\r\n    token.ThrowIfCancellationRequested();\r\n\r\n    do\r\n    {\r\n        var coordinates = GetRandomCoordinates();\r\n\r\n        if (await GetGeocodeAsync(coordinates, token) is not { } geoCode)\r\n        {\r\n            break;\r\n        }\r\n\r\n        token.ThrowIfCancellationRequested();\r\n\r\n        yield return new CoordinateGeoCodePair(\r\n            Coordinates: coordinates, \r\n            GeoCode: geoCode);\r\n    }\r\n    while (!token.IsCancellationRequested);\r\n}<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u60a8\u4f1a\u6ce8\u610f\u5230\u5b83\u8fd4\u56de<\/span><span data-contrast=\"auto\"> CoordinateStream <\/span><span data-contrast=\"auto\">\u522b\u540d\uff0c\u5373<\/span><span data-contrast=\"auto\"> IAsyncEnumerable&lt;CoordinateGeoCodePair&gt;<\/span><span data-contrast=\"auto\">\u3002\u5b83\u63a5\u53d7<\/span><span data-contrast=\"auto\"> AsyncCancelable <\/span><span data-contrast=\"auto\">\u5c5e\u6027\uff0c\u8be5\u5c5e\u6027\u662f<\/span><span data-contrast=\"auto\"> EnumeratorCancellationAttribute <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u7684\u522b\u540d\u3002\u6b64\u5c5e\u6027\u7528\u4e8e\u4fee\u9970\u53d6\u6d88\u4ee4\u724c\uff0c\u4ee5\u4fbf\u4e0e<\/span><span data-contrast=\"auto\"> IAsyncEnumerable <\/span><span data-contrast=\"auto\">\u7ed3\u5408\u4f7f\u7528\u6765\u53d6\u6d88\u3002\u5728\u8bf7\u6c42\u672a\u53d6\u6d88\u65f6\uff0c\u8be5\u65b9\u6cd5\u4f1a\u751f\u6210\u968f\u673a\u5750\u6807\u3001\u68c0\u7d22\u5730\u7406\u7f16\u7801\u5143\u6570\u636e\u5e76\u751f\u6210\u65b0\u7684<\/span><span data-contrast=\"auto\"> CoordinateGeoCodePair <\/span><span data-contrast=\"auto\">\u5b9e\u4f8b\u3002<\/span><span data-contrast=\"auto\">GetGeocodeAsync <\/span><span data-contrast=\"auto\">\u65b9\u6cd5\u8bf7\u6c42\u7ed9\u5b9a\u5750\u6807\u7684\u5730\u7406\u7f16\u7801\u5143\u6570\u636e\uff0c\u5982\u679c\u8bf7\u6c42\u6210\u529f\uff0c\u5219\u8fd4\u56de<\/span><span data-contrast=\"auto\"> GeoCode <\/span><span data-contrast=\"auto\">\u54cd\u5e94\u6a21\u578b\u3002\u4f8b\u5982\uff0c<\/span><span data-contrast=\"auto\">Microsoft Campus <\/span><span data-contrast=\"auto\">\u5177\u6709\u5982\u4e0b\u5750\u6807<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">GET \/data\/reverse-geocode-client?latitude=47.637&amp;longitude=-122.124 HTTP\/1.1\r\nHost: api.bigdatacloud.net\r\nScheme: https<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u82e5\u8981\u67e5\u770b<\/span><span data-contrast=\"auto\"> JSON<\/span><span data-contrast=\"auto\">\uff0c\u8bf7<\/span><a href=\"https:\/\/api.bigdatacloud.net\/data\/reverse-geocode-client?latitude=47.637&amp;longitude=-122.124\"><span data-contrast=\"none\">\u5728\u6d4f\u89c8\u5668\u4e2d\u6253\u5f00\u6b64\u94fe\u63a5<\/span><\/a><span data-contrast=\"auto\">\u3002CoordinateGeoCodePair <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u6ca1\u6709\u522b\u540d\uff0c\u4f46\u5b83\u662f\u4e00\u4e2a\u5305\u542b<\/span><span data-contrast=\"auto\"> Coordinates <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"> GeoCode <\/span><span data-contrast=\"auto\">\u7684\u53ea\u8bfb\u8bb0\u5f55\u7ed3\u6784<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">namespace Alias.AnyType;\r\n\r\ninternal readonly record struct CoordinateGeoCodePair(\r\n    Coordinates Coordinates,\r\n    GeoCode GeoCode);<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u56de\u5230<\/span><span data-contrast=\"auto\"> Program <\/span><span data-contrast=\"auto\">\u7c7b\uff0c\u5f53\u6211\u4eec\u904d\u5386\u6bcf\u4e2a\u5750\u6807\u5730\u7406\u7f16\u7801\u5bf9\u65f6\uff0c\u6211\u4eec\u5c06\u5143\u7ec4\u89e3\u6784\u4e3a<\/span><span data-contrast=\"auto\"> Coordinates <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"> GeoCode <\/span><span data-contrast=\"auto\">\u5b9e\u4f8b\u3002<\/span><span data-contrast=\"auto\">Coordinates <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u662f\u4e24\u4e2a<\/span><span data-contrast=\"auto\">double<\/span><span data-contrast=\"auto\">\u503c\u5143\u7ec4\u7684\u522b\u540d\uff0c\u5206\u522b\u8868\u793a\u7eac\u5ea6\u548c\u7ecf\u5ea6\u3002\u540c\u6837\uff0c\u5c06\u9f20\u6807\u60ac\u505c\u5728<\/span><span data-contrast=\"auto\"> IDE <\/span><span data-contrast=\"auto\">\u4e2d\u7684\u6b64\u7c7b\u578b\u4e0a\u80fd\u5feb\u901f\u67e5\u770b\u7c7b\u578b\uff0c\u8bf7\u67e5\u770b\u4ee5\u4e0b\u5c4f\u5e55\u622a\u56fe<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\"> <a href=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple.png\"><img decoding=\"async\" class=\"alignnone size-full wp-image-746\" src=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple.png\" alt=\"Image alias hover tuple\" width=\"2629\" height=\"1434\" srcset=\"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple.png 2629w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple-300x164.png 300w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple-1024x559.png 1024w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple-768x419.png 768w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple-1536x838.png 1536w, https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-content\/uploads\/sites\/75\/2024\/06\/alias-hover-tuple-2048x1117.png 2048w\" sizes=\"(max-width: 2629px) 100vw, 2629px\" \/><\/a><\/span><\/p>\n<p><span data-contrast=\"auto\">GeoCode <\/span><span data-contrast=\"auto\">\u7c7b\u578b\u662f\u4e00\u4e2a\u54cd\u5e94\u5f0f\u6a21\u578b\uff0c\u5176\u4e2d\u5305\u542b\u6709\u5173\u5730\u7406\u7f16\u7801\u5143\u6570\u636e\u7684\u4fe1\u606f\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528\u6269\u5c55\u65b9\u6cd5\u5c06<\/span><span data-contrast=\"auto\">Coordinates<\/span><span data-contrast=\"auto\">\u8f6c\u6362\u4e3a\u57fa\u6570\u5316\u5b57\u7b26\u4e32\uff0c\u8be5\u5b57\u7b26\u4e32\u4ee5\u5ea6<\/span><span data-contrast=\"auto\">&#8211;<\/span><span data-contrast=\"auto\">\u5206<\/span><span data-contrast=\"auto\">&#8211;<\/span><span data-contrast=\"auto\">\u79d2\u683c\u5f0f\u8868\u793a\u5750\u6807\u3002\u6211\u4e2a\u4eba\u559c\u6b22\u5728\u6211\u7684\u4ee3\u7801\u5e93\u4e2d\u8f7b\u677e\u4f7f\u7528\u522b\u540d\u3002\u8ba9\u6211\u4eec\u770b\u770b\u4e00\u4e9b\u6269\u5c55\u6216\u8fd4\u56de\u522b\u540d\u7c7b\u578b\u7684\u6269\u5c55\u65b9\u6cd5<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">internal static string ToCardinalizedString(this Coordinates coordinates)\r\n{\r\n    var (latCardinalized, lonCardinalized) = (\r\n        FormatCardinal(coordinates.Latitude, true),\r\n        FormatCardinal(coordinates.Longitude, false)\r\n    );\r\n\r\n    return $\"{latCardinalized},{lonCardinalized}\";\r\n\r\n    static string FormatCardinal(double degrees, bool isLat)\r\n    {\r\n        (int degree, int minute, double second) = degrees.ToDMS();\r\n\r\n        var cardinal = degrees.ToCardinal(isLat);\r\n\r\n        return $\"{degree}\u00b0{minute}'{second % 60:F4}\\\"{cardinal}\";\r\n    }\r\n}<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u6b64\u6269\u5c55\u65b9\u6cd5\u6269\u5c55\u4e86<\/span><span data-contrast=\"auto\"> Coordinates <\/span><span data-contrast=\"auto\">\u522b\u540d\u7c7b\u578b\u5e76\u8fd4\u56de\u5750\u6807\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002\u5b83\u4f7f\u7528<\/span><span data-contrast=\"auto\"> ToDMS <\/span><span data-contrast=\"auto\">\u6269\u5c55\u65b9\u6cd5\u5c06\u7eac\u5ea6\u548c\u7ecf\u5ea6\u8f6c\u6362\u4e3a\u5ea6<\/span><span data-contrast=\"auto\">\u3001<\/span><span data-contrast=\"auto\">\u5206<\/span><span data-contrast=\"auto\">\u3001<\/span><span data-contrast=\"auto\">\u79d2\u683c\u5f0f\u3002<\/span><span data-contrast=\"auto\">ToDMS <\/span><span data-contrast=\"auto\">\u6269\u5c55\u65b9\u6cd5\u5b9a\u4e49\u5982\u4e0b<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<pre class=\"prettyprint language-default\"><code class=\"language-default\">internal static DMS ToDMS(this double coordinate)\r\n{\r\n    var ts = TimeSpan.FromHours(Abs(coordinate));\r\n\r\n    int degrees = (int)(Sign(coordinate) * Floor(ts.TotalHours));\r\n    int minutes = ts.Minutes;\r\n    double seconds = ts.TotalSeconds;\r\n\r\n    return new DMS(degrees, minutes, seconds);\r\n}<\/code><\/pre>\n<p><span data-contrast=\"auto\">\u5982\u679c\u60a8\u8fd8\u8bb0\u5f97\u7684\u8bdd\uff0c<\/span><span data-contrast=\"auto\">DMS <\/span><span data-contrast=\"auto\">\u522b\u540d\u662f<\/span> <span data-contrast=\"auto\">\u662f\u7531\u4ee3\u8868\u5ea6\u3001\u5206\u548c\u79d2\u7684\u4e09\u4e2a\u503c\u7ec4\u6210\u7684\u5143\u7ec4<\/span><span data-contrast=\"auto\">\u3002ToDMS <\/span><span data-contrast=\"auto\">\u6269\u5c55\u65b9\u6cd5\u63a5\u6536<\/span><span data-contrast=\"auto\">double<\/span><span data-contrast=\"auto\">\u503c\u5e76\u8fd4\u56de<\/span> <span data-contrast=\"auto\">\u4e00\u4e2a<\/span><span data-contrast=\"auto\">DMS <\/span><span data-contrast=\"auto\">\u5143\u7ec4\u3002<\/span><span data-contrast=\"auto\">ToCardinal <\/span><span data-contrast=\"auto\">\u6269\u5c55\u65b9\u6cd5\u7528\u4e8e\u786e\u5b9a\u5750\u6807\u7684\u57fa\u672c\u65b9\u5411\uff0c\u8fd4\u56de<\/span><span data-contrast=\"auto\"> N\u3001S\u3001E <\/span><span data-contrast=\"auto\">\u6216<\/span><span data-contrast=\"auto\"> W\u3002Abs\u3001Sign <\/span><span data-contrast=\"auto\">\u548c<\/span><span data-contrast=\"auto\"> Floor <\/span><span data-contrast=\"auto\">\u65b9\u6cd5\u90fd\u662f<\/span><span data-contrast=\"auto\"> System.Math <\/span><span data-contrast=\"auto\">\u547d\u540d\u7a7a\u95f4\u7684\u9759\u6001\u6210\u5458\uff0c\u8be5\u547d\u540d\u7a7a\u95f4\u5728<\/span><span data-contrast=\"auto\"> GlobalUsings.cs <\/span><span data-contrast=\"auto\">\u6587\u4ef6\u4e2d\u6709\u522b\u540d<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u9664\u6b64\u4e4b\u5916\uff0c\u8be5\u5e94\u7528\u7a0b\u5e8f\u8fd8\u4f1a\u5411\u63a7\u5236\u53f0\u663e\u793a<\/span><span data-contrast=\"auto\"> UFO <\/span><span data-contrast=\"auto\">\u76ee\u51fb\u8be6\u60c5\uff0c\u5305\u62ec\u5750\u6807\u3001\u5730\u7406\u7f16\u7801\u5143\u6570\u636e\u4ee5\u53ca\u76ee\u51fb\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002\u8fd9\u4e2a\u64cd\u4f5c\u4f1a\u4e0d\u65ad\u91cd\u590d\uff0c\u76f4\u5230\u7528\u6237\u4f7f\u7528<\/span><span data-contrast=\"auto\">Ctrl + C<\/span><span data-contrast=\"auto\">\u7ec4\u5408\u952e\u505c\u6b62\u5e94\u7528\u7a0b\u5e8f<\/span><span data-contrast=\"auto\">\u3002<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u540e\u7eed\u6b65\u9aa4<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">\u8bf7\u52a1\u5fc5\u5728\u81ea\u5df1\u7684\u4ee3\u7801\u4e2d\u5c1d\u8bd5\u4e00\u4e0b\uff01\u7a0d\u540e\u8bf7\u67e5\u770b\u672c\u7cfb\u5217\u7684\u6700\u540e\u4e00\u7bc7\u6587\u7ae0\uff0c\u6211\u4eec\u5c06\u5728\u5176\u4e2d\u63a2\u8ba8\u9ed8\u8ba4\u7684<\/span><span data-contrast=\"auto\"> lambda <\/span><span data-contrast=\"auto\">\u53c2\u6570\u3002\u82e5\u8981\u7ee7\u7eed\u4e86\u89e3\u6709\u5173\u6b64\u529f\u80fd\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u67e5\u770b\u4ee5\u4e0b\u8d44\u6e90<\/span><span data-contrast=\"auto\">\uff1a<\/span><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/learn.microsoft.com\/dotnet\/csharp\/language-reference\/keywords\/using-directive#using-alias\"><span data-contrast=\"auto\">C# using<\/span><span data-contrast=\"auto\">\u6307\u4ee4\uff1a<\/span><span data-contrast=\"none\">using alias<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><a href=\"https:\/\/learn.microsoft.com\/dotnet\/csharp\/language-reference\/proposals\/csharp-12.0\/using-alias-types\"><span data-contrast=\"auto\">\u5141\u8bb8<\/span><span data-contrast=\"auto\">using alias<\/span><span data-contrast=\"none\">\u6307\u4ee4\u5f15\u7528\u4efb\u4f55\u7c7b\u578b<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/csharp\/language-reference\/builtin-types\/value-tuples\"><span data-contrast=\"auto\">\u5143\u7ec4\u7c7b\u578b\uff08<\/span><span data-contrast=\"auto\">C# <\/span><span data-contrast=\"none\">\u53c2\u8003\uff09<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:860,&quot;335559991&quot;:440,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"5\" data-aria-level=\"1\"><a href=\"https:\/\/learn.microsoft.com\/dotnet\/core\/project-sdk\/msbuild-props#implicitusings\"><span data-contrast=\"auto\">.NET SDK <\/span><span data-contrast=\"auto\">\u9879\u76ee\u7684<\/span><span data-contrast=\"auto\"> MSBuild <\/span><span data-contrast=\"auto\">\u53c2\u8003\uff1a\u542f\u7528<\/span> <span data-contrast=\"none\">ImplicitUsings<\/span><\/a><span data-ccp-props=\"{&quot;134245417&quot;:false,&quot;335551550&quot;:6,&quot;335551620&quot;:6}\">\u00a0<\/span><\/li>\n<\/ul>\n<p>\u5982\u679c\u60a8\u6709\u4efb\u4f55\u6280\u672f\u95ee\u9898\uff0c\u6b22\u8fce\u6765<a href=\"https:\/\/learn.microsoft.com\/zh-cn\/answers\/tags\/309\/csharp\" target=\"_blank\" rel=\"noopener\">Microsoft Q&amp;A<\/a>\u00a0\u63d0\u95ee\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u7ffb\u8bd1\u4e8eDavid Pine\u7684\u8fd9\u7bc7\u6587\u7ae0: Refactor your code using alias any type\u3002 \u8fd9\u7bc7\u6587\u7ae0\u662f\u56db\u7bc7\u7cfb\u5217\u6587\u7ae0\u4e2d\u7684\u7b2c\u4e09\u7bc7\uff0c\u4e3b\u8981\u63a2\u8ba8C# 12\u7684\u5404\u79cd\u529f\u80fd\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u201c\u522b\u540d\u4efb\u4f55\u7c7b\u578b\u201d\u529f\u80fd\uff0c\u8be5\u529f\u80fd\u5141\u8bb8\u60a8\u4f7f\u7528 using \u6307\u4ee4\u4e3a\u4efb\u4f55\u7c7b\u578b\u521b\u5efa\u522b\u540d\u3002\u8fd9\u4e2a\u7cfb\u5217\u5df2\u7ecf\u521d\u5177\u89c4\u6a21\uff1a\u00a0 \u4f7f\u7528\u4e3b\u6784\u9020\u51fd\u6570\u91cd\u6784 C# \u4ee3\u7801\u00a0 \u4f7f\u7528\u96c6\u5408\u8868\u8fbe\u5f0f\u91cd\u6784 C# \u4ee3\u7801\u00a0 \u4f7f\u7528\u4efb\u610f\u7c7b\u578b\u522b\u540d\u91cd\u6784 C# \u4ee3\u7801\uff08\u672c\u7bc7\u6587\u7ae0\uff09\u00a0 \u4f7f\u7528\u9ed8\u8ba4 lambda \u53c2\u6570\u91cd\u6784C#\u4ee3\u7801 \u6240\u6709\u8fd9\u4e9b\u529f\u80fd\u90fd\u5c06\u7ee7\u7eed\u6211\u4eec\u7684\u65c5\u7a0b\uff0c\u4f7f\u6211\u4eec\u7684\u4ee3\u7801\u66f4\u5177\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd9\u4e9b\u88ab\u8ba4\u4e3a\u662f\u5f00\u53d1\u4eba\u5458\u5e94\u8be5\u77e5\u9053\u7684\u201c\u65e5\u5e38 C#\u201d\u529f\u80fd\u3002\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u5427\uff01\u00a0 \u522b\u540d\u4efb\u610f\u7c7b\u578b*\ufe0f\u20e3\u00a0 C# 12 \u5f15\u5165\u4e86\u4f7f\u7528 using \u6307\u4ee4\u4e3a\u4efb\u610f\u7c7b\u578b\u6dfb\u52a0\u522b\u540d\u7684\u529f\u80fd\u3002\u6b64\u529f\u80fd\u5141\u8bb8\u60a8\u6307\u5b9a\u6620\u5c04\u5230\u5176\u4ed6\u7c7b\u578b\u7684\u522b\u540d\u3002\u8fd9\u5305\u62ec\u5143\u7ec4\u7c7b\u578b\u3001\u6307\u9488\u7c7b\u578b\u3001\u6570\u7ec4\u7c7b\u578b\uff0c\u751a\u81f3\u975e\u5f00\u653e\u6cdb\u578b\u7c7b\u578b\uff0c\u6240\u6709\u8fd9\u4e9b\u7c7b\u578b\u90fd\u53ef\u4ee5\u5728\u60a8\u7684\u4ee3\u7801\u4e2d\u4f7f\u7528\u3002\u6b64\u529f\u80fd\u5728\u4ee5\u4e0b\u573a\u666f\u7279\u522b\u6709\u7528\uff1a\u00a0 \u5f53\u4f7f\u7528\u957f\u6216\u590d\u6742\u7684\u7c7b\u578b\u540d\u79f0\u65f6\u3002\u00a0 \u5f53\u6d88\u9664\u7c7b\u578b\u6b67\u4e49\u5e76\u89e3\u51b3\u6f5c\u5728\u7684\u547d\u540d\u51b2\u7a81\u65f6\u3002\u00a0 \u5f53\u5b9a\u4e49\u8981\u5728\u7a0b\u5e8f\u96c6\u4e2d\u5171\u4eab\u7684\u503c\u5143\u7ec4\u7c7b\u578b\u65f6\u3002\u00a0 \u5f53\u5e0c\u671b\u901a\u8fc7\u4f7f\u7528\u66f4\u5177\u63cf\u8ff0\u6027\u7684\u540d\u79f0\u6765\u589e\u52a0\u4ee3\u7801\u7684\u6e05\u6670\u5ea6\u65f6\u3002\u00a0 \u5b98\u65b9 C# \u6587\u6863\u63d0\u4f9b\u4e86\u5f88\u591a\u6709\u5173\u5982\u4f55\u4f7f\u7528\u6b64\u529f\u80fd\u7684\u793a\u4f8b\uff0c\u4f46\u6211\u5e76\u4e0d\u60f3\u5728\u6b64\u91cd\u590d\u8fd9\u4e9b\u793a\u4f8b\uff0c\u800c\u662f\u51b3\u5b9a\u7f16\u5199\u4e00\u4e2a\u6f14\u793a\u5e94\u7528\u7a0b\u5e8f\u6765\u793a\u8303\u8be5\u529f\u80fd\u7684\u5404\u4e2a\u65b9\u9762\u3002 \u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u00a0 \u6b64\u529f\u80fd\u652f\u6301\u5927\u591a\u6570\u7c7b\u578b\uff0c\u4f46\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u9664\u5916\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u60a8\u65e0\u6cd5\u4e3a\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u8bbe\u7f6e\u522b\u540d\uff0c C# \u7f16\u8bd1\u5668\u4f1a\u62a5\u544a\u9519\u8bef CS9132\uff1a\u4f7f\u7528\u7684\u522b\u540d\u4e0d\u80fd\u662f\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u3002\u4ee5\u4e0b\u5185\u5bb9\u6458\u81ea\u529f\u80fd\u8bf4\u660e\uff0c\u4ee5\u5e2e\u52a9\u6f84\u6e05\u8fd9\u4e00\u70b9\uff1a\u00a0 \/\/ This is not legal. \/\/ Error CS9132: Using alias [&hellip;]<\/p>\n","protected":false},"author":99475,"featured_media":749,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[2,10],"class_list":["post-742","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dotnet-ch","tag-net","tag-c"],"acf":[],"blog_post_summary":"<p>\u672c\u6587\u7ffb\u8bd1\u4e8eDavid Pine\u7684\u8fd9\u7bc7\u6587\u7ae0: Refactor your code using alias any type\u3002 \u8fd9\u7bc7\u6587\u7ae0\u662f\u56db\u7bc7\u7cfb\u5217\u6587\u7ae0\u4e2d\u7684\u7b2c\u4e09\u7bc7\uff0c\u4e3b\u8981\u63a2\u8ba8C# 12\u7684\u5404\u79cd\u529f\u80fd\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u201c\u522b\u540d\u4efb\u4f55\u7c7b\u578b\u201d\u529f\u80fd\uff0c\u8be5\u529f\u80fd\u5141\u8bb8\u60a8\u4f7f\u7528 using \u6307\u4ee4\u4e3a\u4efb\u4f55\u7c7b\u578b\u521b\u5efa\u522b\u540d\u3002\u8fd9\u4e2a\u7cfb\u5217\u5df2\u7ecf\u521d\u5177\u89c4\u6a21\uff1a\u00a0 \u4f7f\u7528\u4e3b\u6784\u9020\u51fd\u6570\u91cd\u6784 C# \u4ee3\u7801\u00a0 \u4f7f\u7528\u96c6\u5408\u8868\u8fbe\u5f0f\u91cd\u6784 C# \u4ee3\u7801\u00a0 \u4f7f\u7528\u4efb\u610f\u7c7b\u578b\u522b\u540d\u91cd\u6784 C# \u4ee3\u7801\uff08\u672c\u7bc7\u6587\u7ae0\uff09\u00a0 \u4f7f\u7528\u9ed8\u8ba4 lambda \u53c2\u6570\u91cd\u6784C#\u4ee3\u7801 \u6240\u6709\u8fd9\u4e9b\u529f\u80fd\u90fd\u5c06\u7ee7\u7eed\u6211\u4eec\u7684\u65c5\u7a0b\uff0c\u4f7f\u6211\u4eec\u7684\u4ee3\u7801\u66f4\u5177\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd9\u4e9b\u88ab\u8ba4\u4e3a\u662f\u5f00\u53d1\u4eba\u5458\u5e94\u8be5\u77e5\u9053\u7684\u201c\u65e5\u5e38 C#\u201d\u529f\u80fd\u3002\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u5427\uff01\u00a0 \u522b\u540d\u4efb\u610f\u7c7b\u578b*\ufe0f\u20e3\u00a0 C# 12 \u5f15\u5165\u4e86\u4f7f\u7528 using \u6307\u4ee4\u4e3a\u4efb\u610f\u7c7b\u578b\u6dfb\u52a0\u522b\u540d\u7684\u529f\u80fd\u3002\u6b64\u529f\u80fd\u5141\u8bb8\u60a8\u6307\u5b9a\u6620\u5c04\u5230\u5176\u4ed6\u7c7b\u578b\u7684\u522b\u540d\u3002\u8fd9\u5305\u62ec\u5143\u7ec4\u7c7b\u578b\u3001\u6307\u9488\u7c7b\u578b\u3001\u6570\u7ec4\u7c7b\u578b\uff0c\u751a\u81f3\u975e\u5f00\u653e\u6cdb\u578b\u7c7b\u578b\uff0c\u6240\u6709\u8fd9\u4e9b\u7c7b\u578b\u90fd\u53ef\u4ee5\u5728\u60a8\u7684\u4ee3\u7801\u4e2d\u4f7f\u7528\u3002\u6b64\u529f\u80fd\u5728\u4ee5\u4e0b\u573a\u666f\u7279\u522b\u6709\u7528\uff1a\u00a0 \u5f53\u4f7f\u7528\u957f\u6216\u590d\u6742\u7684\u7c7b\u578b\u540d\u79f0\u65f6\u3002\u00a0 \u5f53\u6d88\u9664\u7c7b\u578b\u6b67\u4e49\u5e76\u89e3\u51b3\u6f5c\u5728\u7684\u547d\u540d\u51b2\u7a81\u65f6\u3002\u00a0 \u5f53\u5b9a\u4e49\u8981\u5728\u7a0b\u5e8f\u96c6\u4e2d\u5171\u4eab\u7684\u503c\u5143\u7ec4\u7c7b\u578b\u65f6\u3002\u00a0 \u5f53\u5e0c\u671b\u901a\u8fc7\u4f7f\u7528\u66f4\u5177\u63cf\u8ff0\u6027\u7684\u540d\u79f0\u6765\u589e\u52a0\u4ee3\u7801\u7684\u6e05\u6670\u5ea6\u65f6\u3002\u00a0 \u5b98\u65b9 C# \u6587\u6863\u63d0\u4f9b\u4e86\u5f88\u591a\u6709\u5173\u5982\u4f55\u4f7f\u7528\u6b64\u529f\u80fd\u7684\u793a\u4f8b\uff0c\u4f46\u6211\u5e76\u4e0d\u60f3\u5728\u6b64\u91cd\u590d\u8fd9\u4e9b\u793a\u4f8b\uff0c\u800c\u662f\u51b3\u5b9a\u7f16\u5199\u4e00\u4e2a\u6f14\u793a\u5e94\u7528\u7a0b\u5e8f\u6765\u793a\u8303\u8be5\u529f\u80fd\u7684\u5404\u4e2a\u65b9\u9762\u3002 \u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u00a0 \u6b64\u529f\u80fd\u652f\u6301\u5927\u591a\u6570\u7c7b\u578b\uff0c\u4f46\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u9664\u5916\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u60a8\u65e0\u6cd5\u4e3a\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u8bbe\u7f6e\u522b\u540d\uff0c C# \u7f16\u8bd1\u5668\u4f1a\u62a5\u544a\u9519\u8bef CS9132\uff1a\u4f7f\u7528\u7684\u522b\u540d\u4e0d\u80fd\u662f\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u3002\u4ee5\u4e0b\u5185\u5bb9\u6458\u81ea\u529f\u80fd\u8bf4\u660e\uff0c\u4ee5\u5e2e\u52a9\u6f84\u6e05\u8fd9\u4e00\u70b9\uff1a\u00a0 \/\/ This is not legal. \/\/ Error CS9132: Using alias [&hellip;]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/posts\/742","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/users\/99475"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/comments?post=742"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/posts\/742\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/media\/749"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/media?parent=742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/categories?post=742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/wp-json\/wp\/v2\/tags?post=742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}