{"id":204467,"date":"2025-05-29T15:08:45","date_gmt":"2025-05-29T07:08:45","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204467\/"},"modified":"2025-05-29T15:08:45","modified_gmt":"2025-05-29T07:08:45","slug":"%e4%b8%ba%e4%bd%95%e5%8e%bb%e6%8e%89%e6%89%93%e5%8d%b0%e8%bf%ad%e4%bb%a3%e5%99%a8%e5%88%97%e8%a1%a8%e6%89%8d%e8%83%bd%e6%89%a7%e8%a1%8c%e5%90%8e%e7%bb%ad%e4%bb%a3%e7%a0%81%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204467\/","title":{"rendered":"\u4e3a\u4f55\u53bb\u6389\u6253\u5370\u8fed\u4ee3\u5668\u5217\u8868\u624d\u80fd\u6267\u884c\u540e\u7eed\u4ee3\u7801\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u4e3a\u4f55\u53bb\u6389\u6253\u5370\u8fed\u4ee3\u5668\u5217\u8868\u624d\u80fd\u6267\u884c\u540e\u7eed\u4ee3\u7801\uff1f<\/h1>\n<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241108\/1731051945672dc1a9b0f14.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u96be\u4ee5\u7406\u89e3\u7684\u4ee3\u7801\u6267\u884c\u884c\u4e3a\uff1a\u4e3a\u4f55\u53bb\u6389\u6253\u5370\u8fed\u4ee3\u5668\u5217\u8868\u624d\u80fd\u6267\u884c\u540e\u7eed\u4ee3\u7801<\/strong><\/p>\n<p>\u5728\u4ee3\u7801\u4e2d\uff0c\u51fd\u6570y\u521b\u5efa\u4e86\u4e00\u4e2a\u751f\u6210\u5668\uff0c\u8be5\u751f\u6210\u5668\u4ee5\u5217\u8868t\u4e2d\u7684\u5143\u7d20\u4f5c\u4e3a\u5176yield\u503c\uff0c\u800c\u51fd\u6570exec\u4f9d\u6b21\u6253\u5370\u8fed\u4ee3\u5668g\u7684\u5217\u8868\u8868\u793a\u4ee5\u53ca\u5176\u6bcf\u4e2a\u5143\u7d20\u3002<\/p>\n<p>\u4f46\u5f53\u4ee3\u7801\u4e2d\u6253\u5370g\u7684\u5217\u8868\u8868\u793a\u65f6\uff0c\u5c31\u4f1a\u5f15\u53d1\u4e00\u4e2a\u5947\u602a\u7684\u884c\u4e3a\uff1afor i in g\u5faa\u73af\u65e0\u6cd5\u6267\u884c\u3002\u8fd9\u662f\u56e0\u4e3alist(g)\u5728\u751f\u6210\u5668g\u4e0a\u8fdb\u884c\u4e86\u4e00\u6b21\u5b8c\u6574\u8fed\u4ee3\uff0c\u6d88\u8017\u4e86\u6240\u6709\u5143\u7d20\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5f53\u540e\u7eed\u7684for i in g\u5faa\u73af\u5c1d\u8bd5\u904d\u5386g\u65f6\uff0c\u7531\u4e8e\u8fed\u4ee3\u5668\u5df2\u88ab\u8017\u5c3d\uff0c\u5bfc\u81f4\u6ca1\u6709\u5143\u7d20\u53ef\u4f9b\u904d\u5386\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cfor\u5faa\u73af\u5c06\u4e0d\u4f1a\u6267\u884c\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ef\u4ee5\u907f\u514d\u5728\u4ee3\u7801\u4e2d\u4f7f\u7528list(g)\uff0c\u56e0\u4e3a\u5b83\u4f1a\u6d88\u8017\u8fed\u4ee3\u5668\u3002\u76f8\u53cd\uff0c\u53ef\u4ee5\u91c7\u7528\u66f4\u663e\u5f0f\u7684\u8fed\u4ee3\u65b9\u5f0f\uff0c\u4f8b\u5982\u4f7f\u7528iter\u51fd\u6570\u6216next\u51fd\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>def exec(g):\n    # \u9010\u4e2a\u8fed\u4ee3 g \u800c\u4e0d\u6d88\u8017\u5b83\n    for i in iter(g):\n        print(i)<\/pre>\n<p>\u6216\u8005\uff0c\u4f7f\u7528next\u51fd\u6570\uff1a<\/p>\n<pre>def exec(g):\n    while True:\n        try:\n            i = next(g)\n            print(i)\n        except StopIteration:\n            break<\/pre>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e3a\u4f55\u53bb\u6389\u6253\u5370\u8fed\u4ee3\u5668\u5217\u8868\u624d\u80fd\u6267\u884c\u540e&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204467","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204467"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204467\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}