{"id":173365,"date":"2024-05-08T18:10:09","date_gmt":"2024-05-08T10:10:09","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/173365.html"},"modified":"2024-05-08T18:10:18","modified_gmt":"2024-05-08T10:10:18","slug":"python%e4%b8%ad%e7%9a%84%e4%b8%80%e4%b8%aagenerator%e5%af%b9%e8%b1%a1%e5%a6%82%e6%9e%9c%e4%b8%8d%e7%94%a8%e4%ba%86-%e5%bf%85%e9%a1%bbclose%e5%90%97","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/173365.html","title":{"rendered":"python\u4e2d\u7684\u4e00\u4e2agenerator\u5bf9\u8c61\u5982\u679c\u4e0d\u7528\u4e86 \u5fc5\u987bclose\u5417"},"content":{"rendered":"

\"python\u4e2d\u7684\u4e00\u4e2agenerator\u5bf9\u8c61\u5982\u679c\u4e0d\u7528\u4e86<\/p>\n

\u5728Python\u4e2d\uff0c\u4e00\u4e2agenerator\u5bf9\u8c61\u5e76\u4e0d\u5fc5\u987b<\/strong>\u88abclose\uff0c\u4f46\u662f\u63a8\u8350<\/strong>\u5173\u95ed\u5b83\u4eec\uff0c\u5c24\u5176\u662f\u5f53generator\u5360\u7528\u91cd\u8981\u8d44\u6e90\u65f6\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5065\u58de\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u9996\u5148\uff0c\u7406\u89e3generator\u662f\u4ec0\u4e48\u81f3\u5173\u91cd\u8981\uff1a\u5b83\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u8fed\u4ee3\u5668\uff0c\u5141\u8bb8\u4f60\u4ee5\u5ef6\u8fdf\u7684\u65b9\u5f0f\u751f\u6210\u503c\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u4e0d\u4f1a\u50cf\u6807\u51c6\u51fd\u6570\u90a3\u6837\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u503c\uff0c\u800c\u662f\u6bcf\u6b21\u8c03\u7528\u65f6\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u76f4\u5230\u6ca1\u6709\u66f4\u591a\u503c\u53ef\u8fd4\u56de\u3002\u8fd9\u4e2a\u7279\u6027\u4f7f\u5f97generator\u975e\u5e38\u9002\u5408\u5904\u7406\u5927\u91cf\u6570\u636e\u6216\u590d\u6742\u7684\u7b97\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0d\u9700\u8981\u4e00\u6b21\u5c06\u6240\u6709\u6570\u636e\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4e3a\u4ec0\u4e48\u63a8\u8350\u5173\u95edGENERATOR\u5bf9\u8c61\uff1f<\/h3>\n<\/p>\n

\u5173\u95edgenerator\u5bf9\u8c61\u4e3b\u8981\u662f\u51fa\u4e8e\u8d44\u6e90\u7ba1\u7406<\/a>\u7684\u8003\u8651\u3002\u5f53\u4e00\u4e2agenerator\u6253\u5f00\u540e\uff0c\u5b83\u53ef\u80fd\u4f1a\u5360\u7528\u7cfb\u7edf\u8d44\u6e90\uff0c\u5982\u6587\u4ef6\u53e5\u67c4\u6216\u7f51\u7edc\u8fde\u63a5\u7b49\u3002\u901a\u8fc7\u663e\u5f0f\u5173\u95edgenerator\u5bf9\u8c61\uff0c\u6211\u4eec\u53ef\u4ee5\u7acb\u5373\u91ca\u653e\u8fd9\u4e9b\u8d44\u6e90\uff0c\u800c\u4e0d\u662f\u7b49\u5f85Python\u7684\u5783\u573e\u6536\u96c6\u5668\u81ea\u52a8\u5904\u7406\u3002\u8fd9\u4e0d\u4ec5\u53ef\u4ee5\u51cf\u5c11\u8d44\u6e90\u6cc4\u6f0f\u7684\u98ce\u9669\uff0c\u8fd8\u6709\u52a9\u4e8e\u4fdd\u6301\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<\/p>\n

\u4e8c\u3001GENERATOR\u7684\u5173\u95ed\u4e0eEXCEPTIONS<\/h3>\n<\/p>\n

\u53e6\u4e00\u4e2a\u8003\u8651\u5173\u95edgenerator\u7684\u539f\u56e0\u662f\u5f02\u5e38\u5904\u7406\u3002\u5f53generator\u5185\u90e8\u53d1\u751f\u5f02\u5e38\u65f6\uff0c\u5982\u679c\u4e0d\u9002\u5f53\u5904\u7406\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u51fa\u9519\u3002\u901a\u8fc7\u4f7f\u7528.close()<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728generator\u5bf9\u8c61\u4e0a\u5f15\u53d1\u4e00\u4e2aGeneratorExit<\/code>\u5f02\u5e38\uff0c\u5141\u8bb8generator\u9002\u5f53\u5730\u6e05\u7406\u8d44\u6e90\uff0c\u5982\u5173\u95ed\u6587\u4ef6\u53e5\u67c4\u3002\u8fd9\u79cd\u4f18\u96c5\u7684\u5173\u95ed\u65b9\u5f0f\uff0c\u786e\u4fdd\u5373\u4f7f\u53d1\u751f\u5f02\u5e38\uff0c\u4e5f\u80fd\u4fdd\u6301\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u5982\u4f55\u4f18\u96c5\u5730\u5173\u95edGENERATOR\uff1f<\/h3>\n<\/p>\n

\u867d\u7136Python\u7684\u5783\u573e\u6536\u96c6\u5668\u4f1a\u5728\u5bf9\u8c61\u751f\u547d\u5468\u671f\u7ed3\u675f\u65f6\u81ea\u52a8\u56de\u6536\u8d44\u6e90\uff0c\u4f46\u4f9d\u8d56\u5783\u573e\u6536\u96c6\u5668\u6765\u7ba1\u7406\u8d44\u6e90\u5e76\u4e0d\u603b\u662f\u6700\u4f73\u5b9e\u8df5\u3002\u5bf9\u4e8egenerator\u7684\u4f18\u96c5\u5173\u95ed\uff0cPython\u63d0\u4f9b\u4e86\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n

    \n
  • \u4f7f\u7528.close()<\/code>\u65b9\u6cd5\u76f4\u63a5\u5173\u95edgenerator\u3002<\/li>\n
  • \u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668contextlib.closing<\/code>\uff0c\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u5373\u4f7f\u53d1\u751f\u9519\u8bef\uff0cgenerator\u4e5f\u4f1a\u88ab\u6b63\u786e\u5173\u95ed\u3002<\/li>\n
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    \u56db\u3001GENERATOR\u5bf9\u8c61\u5728\u5b9e\u8df5\u4e2d\u7684\u5e94\u7528<\/h3>\n<\/p>\n

    \u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u4e3a\u4f55\u53ca\u5982\u4f55\u5173\u95edgenerator\uff0c\u8003\u8651\u4e00\u79cd\u573a\u666f\uff1a\u5904\u7406\u5927\u578b\u65e5\u5fd7\u6587\u4ef6\u65f6\u3002\u5047\u8bbe\u4f60\u4f7f\u7528\u4e00\u4e2agenerator\u6765\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\uff0c\u5206\u6790\u65e5\u5fd7\u5e76\u63d0\u53d6\u4fe1\u606f\u3002\u5982\u679c\u5728\u6b64\u8fc7\u7a0b\u4e2d\u7a0b\u5e8f\u5f02\u5e38\u7ec8\u6b62\u6216\u5b8c\u6210\u4efb\u52a1\u540e\u672a\u6b63\u786e\u5173\u95ed\u6587\u4ef6\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6587\u4ef6\u53e5\u67c4\u53ef\u80fd\u4e00\u76f4\u4fdd\u6301\u6253\u5f00\u72b6\u6001\uff0c\u5bfc\u81f4\u8d44\u6e90\u6cc4\u6f0f\u3002\u56e0\u6b64\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u786e\u4fdd\u4f7f\u7528.close()<\/code>\u6216\u5176\u4ed6\u65b9\u6cd5\u663e\u5f0f\u5173\u95edgenerator\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<\/p>\n

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    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

    Q: \u4e3a\u4ec0\u4e48\u5fc5\u987b\u5173\u95ed\u4e0d\u518d\u4f7f\u7528\u7684python\u4e2d\u7684generator\u5bf9\u8c61\uff1f<\/strong><\/p>\n

    A: \u5173\u95ed\u4e0d\u518d\u4f7f\u7528\u7684generator\u5bf9\u8c61\u662f\u4e3a\u4e86\u91ca\u653e\u8d44\u6e90\u5e76\u786e\u4fdd\u7a0b\u5e8f\u7684\u6b63\u5e38\u8fd0\u884c\u3002\u5f53\u4e00\u4e2agenerator\u5bf9\u8c61\u4e0d\u518d\u88ab\u9700\u8981\u65f6\uff0c\u5173\u95ed\u5b83\u80fd\u591f\u91ca\u653e\u5185\u5b58\u7a7a\u95f4\u5e76\u51cf\u5c11\u5185\u5b58\u5360\u7528\u3002\u6b64\u5916\uff0c\u5173\u95edgenerator\u5bf9\u8c61\u8fd8\u53ef\u4ee5\u9632\u6b62\u5185\u5b58\u6cc4\u6f0f\u548c\u7ef4\u6301\u7a0b\u5e8f\u7684\u9ad8\u6548\u6027\u3002<\/p>\n

    Q: \u5173\u95edpython\u4e2d\u7684generator\u5bf9\u8c61\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/strong><\/p>\n

    A: \u5173\u95edgenerator\u5bf9\u8c61\u4e3b\u8981\u6709\u4e24\u4e2a\u4f5c\u7528\u3002\u9996\u5148\uff0c\u5173\u95ed\u5bf9\u8c61\u80fd\u591f\u91ca\u653e\u76f8\u5173\u7684\u8d44\u6e90\uff0c\u4f8b\u5982\u6587\u4ef6\u53e5\u67c4\u6216\u7f51\u7edc\u8fde\u63a5\uff0c\u4ee5\u9632\u6b62\u8d44\u6e90\u7684\u6d6a\u8d39\u548c\u5360\u7528\u3002\u5176\u6b21\uff0c\u5173\u95edgenerator\u5bf9\u8c61\u80fd\u591f\u9632\u6b62\u5b83\u5728\u540e\u7eed\u8fed\u4ee3\u4e2d\u4ea7\u751f\u66f4\u591a\u7684\u503c\u3002\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u662f\u5fc5\u8981\u7684\uff0c\u7279\u522b\u662f\u5f53\u751f\u6210\u5668\u4e0e\u5916\u90e8\u8d44\u6e90\u7d27\u5bc6\u5173\u8054\u65f6\u3002<\/p>\n

    Q: generator\u5bf9\u8c61\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u9700\u8981\u5173\u95ed\uff1f<\/strong><\/p>\n

    A: \u9700\u8981\u5173\u95edgenerator\u5bf9\u8c61\u7684\u60c5\u51b5\u5305\u62ec\uff1a\u5f53\u751f\u6210\u5668\u4e0e\u6587\u4ef6\u64cd\u4f5c\u76f8\u5173\u65f6\uff0c\u7279\u522b\u662f\u5728\u8bfb\u5199\u5927\u578b\u6587\u4ef6\u65f6\uff1b\u5f53\u751f\u6210\u5668\u9700\u8981\u8fde\u63a5\u5230\u6570\u636e\u5e93\u6216\u7f51\u7edc\u670d\u52a1\u65f6\uff0c\u4ee5\u9632\u6b62\u8d44\u6e90\u6cc4\u6f0f\uff1b\u5f53\u751f\u6210\u5668\u4e0e\u5176\u4ed6\u8017\u8d39\u8d44\u6e90\u7684\u64cd\u4f5c\uff08\u5982\u6253\u5f00\u3001\u5199\u5165\uff09\u76f8\u5173\u65f6\uff0c\u4ee5\u786e\u4fdd\u8d44\u6e90\u5f97\u5230\u53ca\u65f6\u91ca\u653e\u3002\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5173\u95edgenerator\u5bf9\u8c61\u662f\u4e00\u79cd\u826f\u597d\u7684\u7f16\u7a0b\u4e60\u60ef\uff0c\u6709\u52a9\u4e8e\u4ee3\u7801\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u4e00\u4e2agenerator\u5bf9\u8c61\u5e76\u4e0d\u5fc5\u987b\u88abclose\uff0c\u4f46\u662f\u63a8\u8350\u5173\u95ed\u5b83\u4eec\uff0c\u5c24\u5176\u662f\u5f53generator […]","protected":false},"author":3,"featured_media":173383,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/173365"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=173365"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/173365\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/173383"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=173365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=173365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=173365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}