{"id":2931,"date":"2024-12-13T08:55:04","date_gmt":"2024-12-13T00:55:04","guid":{"rendered":"http:\/\/viplao.com\/?p=2931"},"modified":"2024-12-13T08:55:08","modified_gmt":"2024-12-13T00:55:08","slug":"python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412","status":"publish","type":"post","link":"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/","title":{"rendered":"PYTHON\u57fa\u7840\u6280\u80fd 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href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#3_%E6%AD%A3%E7%A1%AE%E4%BF%AE%E6%94%B9%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%EF%BC%9A%E8%A6%81%E7%94%A8global%E5%85%B3%E9%94%AE%E5%AD%97%EF%BC%81\" title=\"3. \u6b63\u786e\u4fee\u6539\u5168\u5c40\u53d8\u91cf\uff1a\u8981\u7528global\u5173\u952e\u5b57\uff01\">3. \u6b63\u786e\u4fee\u6539\u5168\u5c40\u53d8\u91cf\uff1a\u8981\u7528global\u5173\u952e\u5b57\uff01<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#4_%E5%B1%80%E9%83%A8%E5%8F%98%E9%87%8F%E7%9A%84%E2%80%9C%E5%B9%BD%E7%81%B5%E2%80%9D%E6%95%88%E5%BA%94\" title=\"4. \u5c40\u90e8\u53d8\u91cf\u7684\u201c\u5e7d\u7075\u201d\u6548\u5e94\">4. \u5c40\u90e8\u53d8\u91cf\u7684\u201c\u5e7d\u7075\u201d\u6548\u5e94<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#5_%E9%9D%9E%E7%9B%B4%E8%A7%82%E7%9A%84%E5%8F%98%E9%87%8F%E4%BD%9C%E7%94%A8%E5%9F%9F%EF%BC%9A%E5%B5%8C%E5%A5%97%E5%87%BD%E6%95%B0\" title=\"5. \u975e\u76f4\u89c2\u7684\u53d8\u91cf\u4f5c\u7528\u57df\uff1a\u5d4c\u5957\u51fd\u6570\">5. \u975e\u76f4\u89c2\u7684\u53d8\u91cf\u4f5c\u7528\u57df\uff1a\u5d4c\u5957\u51fd\u6570<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#6_%E4%BD%BF%E7%94%A8nonlocal%E5%85%B3%E9%94%AE%E5%AD%97%E7%9A%84%E5%9C%BA%E6%99%AF\" title=\"6. \u4f7f\u7528nonlocal\u5173\u952e\u5b57\u7684\u573a\u666f\">6. \u4f7f\u7528nonlocal\u5173\u952e\u5b57\u7684\u573a\u666f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#7_%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E7%9A%84%E6%BB%A5%E7%94%A8%EF%BC%9A%E6%98%AF%E7%A6%8F%E8%BF%98%E6%98%AF%E7%A5%B8%EF%BC%9F\" title=\"7. \u5168\u5c40\u53d8\u91cf\u7684\u6ee5\u7528\uff1a\u662f\u798f\u8fd8\u662f\u7978\uff1f\">7. \u5168\u5c40\u53d8\u91cf\u7684\u6ee5\u7528\uff1a\u662f\u798f\u8fd8\u662f\u7978\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#8_%E5%B0%8F%E5%BF%83%E9%97%AD%E5%8C%85%E7%9A%84%E9%99%B7%E9%98%B1\" title=\"8. \u5c0f\u5fc3\u95ed\u5305\u7684\u9677\u9631\">8. \u5c0f\u5fc3\u95ed\u5305\u7684\u9677\u9631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#%E9%AB%98%E7%BA%A7%E6%8A%80%E5%B7%A7\" title=\"\u9ad8\u7ea7\u6280\u5de7\">\u9ad8\u7ea7\u6280\u5de7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#9_%E5%88%A9%E7%94%A8%E6%A8%A1%E5%9D%97%E7%BA%A7%E5%88%AB%E7%9A%84%E5%8F%98%E9%87%8F\" title=\"9. \u5229\u7528\u6a21\u5757\u7ea7\u522b\u7684\u53d8\u91cf\">9. \u5229\u7528\u6a21\u5757\u7ea7\u522b\u7684\u53d8\u91cf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#10_%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E7%9A%84%E6%9B%BF%E4%BB%A3%E6%96%B9%E6%A1%88%EF%BC%9A%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6%E4%B8%8E%E7%8E%AF%E5%A2%83%E5%8F%98%E9%87%8F\" title=\"10. \u5168\u5c40\u53d8\u91cf\u7684\u66ff\u4ee3\u65b9\u6848\uff1a\u914d\u7f6e\u6587\u4ef6\u4e0e\u73af\u5883\u53d8\u91cf\">10. \u5168\u5c40\u53d8\u91cf\u7684\u66ff\u4ee3\u65b9\u6848\uff1a\u914d\u7f6e\u6587\u4ef6\u4e0e\u73af\u5883\u53d8\u91cf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#11_%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AE%A1%E7%90%86%E5%99%A8%E4%B8%8Ewith%E8%AF%AD%E5%8F%A5\" title=\"11. \u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u4e0ewith\u8bed\u53e5\">11. \u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u4e0ewith\u8bed\u53e5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/#12_%E9%97%AD%E5%8C%85%E7%9A%84%E9%AB%98%E7%BA%A7%E5%BA%94%E7%94%A8%EF%BC%9A%E8%AE%B0%E5%BF%86%E5%8C%96\" title=\"12. \u95ed\u5305\u7684\u9ad8\u7ea7\u5e94\u7528\uff1a\u8bb0\u5fc6\u5316\">12. \u95ed\u5305\u7684\u9ad8\u7ea7\u5e94\u7528\uff1a\u8bb0\u5fc6\u5316<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_%E5%9F%BA%E7%A1%80%E7%AF%87%EF%BC%9A%E4%BB%80%E4%B9%88%E6%98%AF%E5%B1%80%E9%83%A8%E5%92%8C%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%EF%BC%9F\"><\/span><strong>1. \u57fa\u7840\u7bc7\uff1a\u4ec0\u4e48\u662f\u5c40\u90e8\u548c\u5168\u5c40\u53d8\u91cf\uff1f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u60f3\u8c61\u4f60\u5728\u53a8\u623f\u505a\u996d\uff0c<code>ingredient<\/code>\uff08\u98df\u6750\uff09\u662f\u5168\u5c40\u7684\uff0c\u56e0\u4e3a\u6574\u4e2a\u53a8\u623f\u90fd\u80fd\u7528\u5230\u5b83\u3002\u800c\u5f53\u4f60\u5728\u5207\u6d0b\u8471\u65f6\uff0c\u90a3\u628a\u5200(<code>knife<\/code>)\u5c31\u662f\u5c40\u90e8\u7684\uff0c\u53ea\u5728\u8fd9\u4e2a\u7279\u5b9a\u4efb\u52a1\uff08\u51fd\u6570\uff09\u91cc\u4f7f\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ingredient&nbsp;=&nbsp;\"\u6d0b\u8471\"<br><br>def&nbsp;chop():<br>&nbsp;&nbsp;&nbsp;&nbsp;knife&nbsp;=&nbsp;\"\u950b\u5229\u7684\u83dc\u5200\"<br>&nbsp;&nbsp;&nbsp;&nbsp;print(f\"\u7528{knife}\u5207{ingredient}\")<br><br>chop()<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\uff0c<code>knife<\/code>\u4ec5\u5728<code>chop<\/code>\u51fd\u6570\u5185\u90e8\u53ef\u89c1\uff0c\u5c31\u662f\u5c40\u90e8\u53d8\u91cf\uff0c\u800c<code>ingredient<\/code>\u662f\u5168\u5c40\u53d8\u91cf\uff0c\u54ea\u91cc\u90fd\u80fd\u8bbf\u95ee\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_%E4%BF%AE%E6%94%B9%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E7%9A%84%E7%AC%AC%E4%B8%80%E5%9D%91%EF%BC%9A%E4%BD%A0%E4%BB%A5%E4%B8%BA%E4%BD%A0%E8%83%BD%E6%94%B9%EF%BC%9F\"><\/span><strong>2. \u4fee\u6539\u5168\u5c40\u53d8\u91cf\u7684\u7b2c\u4e00\u5751\uff1a\u4f60\u4ee5\u4e3a\u4f60\u80fd\u6539\uff1f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u76f4\u63a5\u5728\u51fd\u6570\u91cc\u4fee\u6539\u5168\u5c40\u53d8\u91cf\uff1fPython\u53ef\u4e0d\u8f7b\u6613\u8ba9\u4f60\u5f97\u901e\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>global_var&nbsp;=&nbsp;10<br><br>def&nbsp;change_global():<br>&nbsp;&nbsp;&nbsp;&nbsp;global_var&nbsp;=&nbsp;20&nbsp;<em>#&nbsp;\u6ce8\u610f\uff0c\u8fd9\u53ea\u662f\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u5c40\u90e8\u53d8\u91cf\uff01<\/em><br><br>change_global()<br>print(global_var)&nbsp;<em>#&nbsp;\u731c\u731c\u770b\uff0c\u8f93\u51fa\u662f\u591a\u5c11\uff1f<\/em><\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\u8fd8\u662f10\uff01Python\u8bf4\uff1a\u201c\u563f\uff0c\u4f60\u8fd9\u662f\u65b0\u5efa\u4e86\u4e2a\u5c40\u90e8\u7684<code>global_var<\/code>\uff0c\u539f\u6765\u7684\u6211\u53ef\u6ca1\u52a8\u54e6\u3002\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_%E6%AD%A3%E7%A1%AE%E4%BF%AE%E6%94%B9%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%EF%BC%9A%E8%A6%81%E7%94%A8global%E5%85%B3%E9%94%AE%E5%AD%97%EF%BC%81\"><\/span><strong>3. \u6b63\u786e\u4fee\u6539\u5168\u5c40\u53d8\u91cf\uff1a\u8981\u7528<code>global<\/code>\u5173\u952e\u5b57\uff01<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u60f3\u52a8\u6211\u7684\u5168\u5c40\u53d8\u91cf\uff1f\u5f97\u5148\u6253\u62db\u547c\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>global_var&nbsp;=&nbsp;10<br><br>def&nbsp;change_global_correctly():<br>&nbsp;&nbsp;&nbsp;&nbsp;global&nbsp;global_var<br>&nbsp;&nbsp;&nbsp;&nbsp;global_var&nbsp;=&nbsp;20<br><br>change_global_correctly()<br>print(global_var)&nbsp;<em>#&nbsp;\u8fd9\u6b21\u5bf9\u4e86\u5427\uff1f<\/em><\/code><\/pre>\n\n\n\n<p>\u8fd9\u6b21\uff0c\u8f93\u51fa\u662f20\uff0c\u56e0\u4e3a\u6211\u4eec\u660e\u786e\u544a\u8bc9Python\uff1a\u201c\u563f\uff0c\u6211\u8981\u52a8\u7684\u662f\u5168\u5c40\u7684\u90a3\u4e2a\u5bb6\u4f19\u3002\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_%E5%B1%80%E9%83%A8%E5%8F%98%E9%87%8F%E7%9A%84%E2%80%9C%E5%B9%BD%E7%81%B5%E2%80%9D%E6%95%88%E5%BA%94\"><\/span><strong>4. \u5c40\u90e8\u53d8\u91cf\u7684\u201c\u5e7d\u7075\u201d\u6548\u5e94<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5f53\u4f60\u5728\u51fd\u6570\u5185\u672a\u58f0\u660e\u5c31\u4f7f\u7528\u53d8\u91cf\u540d\uff0cPython\u4f1a\u8ba4\u4e3a\u4f60\u5728\u627e\u5168\u5c40\u53d8\u91cf\uff0c\u4f46\u8fd9\u53ef\u80fd\u4f1a\u5f15\u53d1\u4e00\u4e9b\u8be1\u5f02\u7684\u73b0\u8c61\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def&nbsp;mystery():<br>&nbsp;&nbsp;&nbsp;&nbsp;print(unknown_var)&nbsp;<em>#&nbsp;\u554a\u54e6\uff0c\u8fd9\u662f\u8c01\uff1f<\/em><br><br>try:<br>&nbsp;&nbsp;&nbsp;&nbsp;mystery()<br>except&nbsp;NameError&nbsp;as&nbsp;e:<br>&nbsp;&nbsp;&nbsp;&nbsp;print(e)&nbsp;<em>#&nbsp;\u672a\u77e5\u53d8\u91cf\u9519\u8bef\uff0c\u5b83\u771f\u7684\u5b58\u5728\u5417\uff1f<\/em><\/code><\/pre>\n\n\n\n<p>\u8fd9\u4f1a\u629b\u51faNameError\uff0c\u63d0\u9192\u4f60\u201cunknown_var\u201d\u8fd9\u4e2a\u5e7d\u7075\u5e76\u4e0d\u5b58\u5728\u4e8e\u5168\u5c40\u7a7a\u95f4\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_%E9%9D%9E%E7%9B%B4%E8%A7%82%E7%9A%84%E5%8F%98%E9%87%8F%E4%BD%9C%E7%94%A8%E5%9F%9F%EF%BC%9A%E5%B5%8C%E5%A5%97%E5%87%BD%E6%95%B0\"><\/span><strong>5. \u975e\u76f4\u89c2\u7684\u53d8\u91cf\u4f5c\u7528\u57df\uff1a\u5d4c\u5957\u51fd\u6570<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5d4c\u5957\u51fd\u6570\u53ef\u4ee5\u8bbf\u95ee\u5916\u5c42\u51fd\u6570\u7684\u53d8\u91cf\uff0c\u4f46\u4fee\u6539\u65f6\u8981\u5c0f\u5fc3\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def&nbsp;outer():<br>&nbsp;&nbsp;&nbsp;&nbsp;outer_var&nbsp;=&nbsp;\"\u5916\u5c42\u7684\u5b9d\u85cf\"<br>&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;def&nbsp;inner():<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print(outer_var)&nbsp;<em>#&nbsp;\u80fd\u627e\u5230\u6211\u5916\u516c\u7684\u5b9d\u85cf\u5417\uff1f<\/em><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;outer_var&nbsp;=&nbsp;\"\u88ab\u5185\u5c42\u4fee\u6539\u4e86\"&nbsp;<em>#&nbsp;\u5b9e\u9645\u4e0a\uff0c\u8fd9\u521b\u9020\u4e86\u4e00\u4e2a\u65b0\u7684\u5c40\u90e8\u53d8\u91cf<\/em><br>&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;inner()<br>&nbsp;&nbsp;&nbsp;&nbsp;print(outer_var)&nbsp;<em>#&nbsp;\u5916\u5c42\u7684\u503c\u4f1a\u53d8\u5417\uff1f<\/em><br><br>outer()&nbsp;<em>#&nbsp;\u6765\u770b\u770b\u7ed3\u679c<\/em><\/code><\/pre>\n\n\n\n<p>\u4f60\u4f1a\u53d1\u73b0\uff0c\u5916\u5c42\u7684\u503c\u6ca1\u53d8\uff0c\u56e0\u4e3a\u5185\u5c42\u521b\u5efa\u4e86\u4e00\u4e2a\u540c\u540d\u7684\u5c40\u90e8\u53d8\u91cf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_%E4%BD%BF%E7%94%A8nonlocal%E5%85%B3%E9%94%AE%E5%AD%97%E7%9A%84%E5%9C%BA%E6%99%AF\"><\/span><strong>6. \u4f7f\u7528<code>nonlocal<\/code>\u5173\u952e\u5b57\u7684\u573a\u666f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5f53\u4f60\u786e\u5b9e\u60f3\u5728\u5d4c\u5957\u51fd\u6570\u4e2d\u4fee\u6539\u5916\u5c42\u51fd\u6570\u7684\u53d8\u91cf\u65f6\uff0c<code>nonlocal<\/code>\u6765\u5e2e\u5fd9\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def&nbsp;outer():<br>&nbsp;&nbsp;&nbsp;&nbsp;outer_var&nbsp;=&nbsp;\"\u539f\u59cb\u5b9d\u85cf\"<br>&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;def&nbsp;inner():<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;nonlocal&nbsp;outer_var<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;outer_var&nbsp;=&nbsp;\"\u5b9d\u85cf\u5347\u7ea7\u4e86\"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print(outer_var)<br>&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;inner()<br>&nbsp;&nbsp;&nbsp;&nbsp;print(outer_var)&nbsp;<em>#&nbsp;\u8fd9\u6b21\u4f1a\u600e\u6837\uff1f<\/em><br><br>outer()&nbsp;<em>#&nbsp;\u54c8\u54c8\uff0c\u6210\u529f\u4fee\u6539\uff01<\/em><\/code><\/pre>\n\n\n\n<p><code>nonlocal<\/code>\u5173\u952e\u5b57\u8ba9Python\u77e5\u9053\u4f60\u60f3\u4fee\u6539\u7684\u662f\u5916\u5c42\u7684\u53d8\u91cf\uff0c\u4e0d\u662f\u521b\u5efa\u65b0\u7684\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E7%9A%84%E6%BB%A5%E7%94%A8%EF%BC%9A%E6%98%AF%E7%A6%8F%E8%BF%98%E6%98%AF%E7%A5%B8%EF%BC%9F\"><\/span><strong>7. \u5168\u5c40\u53d8\u91cf\u7684\u6ee5\u7528\uff1a\u662f\u798f\u8fd8\u662f\u7978\uff1f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5168\u5c40\u53d8\u91cf\u7528\u5f97\u723d\uff0c\u4f46\u8fc7\u5ea6\u4f9d\u8d56\u5c31\u50cf\u5403\u592a\u591a\u7cd6\uff0c\u77ed\u671f\u5185\u751c\uff0c\u957f\u671f\u6709\u5bb3\u3002\u5b83\u53ef\u80fd\u5bfc\u81f4\u4ee3\u7801\u96be\u4ee5\u7ef4\u62a4\u548c\u6d4b\u8bd5\u3002\u5c3d\u91cf\u901a\u8fc7\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u4f20\u9012\u6570\u636e\uff0c\u4fdd\u6301\u6a21\u5757\u95f4\u7684\u72ec\u7acb\u6027\uff0c\u8fd9\u6837\u4f60\u7684\u4ee3\u7801\u624d\u4f1a\u66f4\u5065\u5eb7\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_%E5%B0%8F%E5%BF%83%E9%97%AD%E5%8C%85%E7%9A%84%E9%99%B7%E9%98%B1\"><\/span><strong>8. \u5c0f\u5fc3\u95ed\u5305\u7684\u9677\u9631<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u95ed\u5305\u662fPython\u4e2d\u7684\u9ad8\u7ea7\u7279\u6027\uff0c\u4f46\u4e5f\u53ef\u80fd\u56e0\u53d8\u91cf\u4f5c\u7528\u57df\u800c\u8ba9\u4eba\u56f0\u60d1\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def&nbsp;create_counter():<br>&nbsp;&nbsp;&nbsp;&nbsp;count&nbsp;=&nbsp;0<br>&nbsp;&nbsp;&nbsp;&nbsp;def&nbsp;counter():<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;nonlocal&nbsp;count<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;count&nbsp;+=&nbsp;1<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;count<br>&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;counter<br><br>my_counter&nbsp;=&nbsp;create_counter()<br>print(my_counter())&nbsp;<em>#&nbsp;1<\/em><br>print(my_counter())&nbsp;<em>#&nbsp;2<\/em><br><em>#&nbsp;\u770b\uff0ccount\u88ab\u6b63\u786e\u5730\u4fdd\u7559\u548c\u589e\u52a0\u4e86\uff01<\/em><\/code><\/pre>\n\n\n\n<p>\u95ed\u5305\u53ef\u4ee5\u8bb0\u4f4f\u5916\u90e8\u51fd\u6570\u7684\u72b6\u6001\uff0c\u4f46\u8bb0\u5f97\uff0c\u8fd9\u4e5f\u610f\u5473\u7740\u5b83\u53ef\u80fd\u4f1a\u4fdd\u7559\u6bd4\u9884\u671f\u66f4\u591a\u7684\u5185\u5b58\uff0c\u6240\u4ee5\u4f7f\u7528\u65f6\u8981\u8c28\u614e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%AB%98%E7%BA%A7%E6%8A%80%E5%B7%A7\"><\/span><strong>\u9ad8\u7ea7\u6280\u5de7<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_%E5%88%A9%E7%94%A8%E6%A8%A1%E5%9D%97%E7%BA%A7%E5%88%AB%E7%9A%84%E5%8F%98%E9%87%8F\"><\/span><strong>9. \u5229\u7528\u6a21\u5757\u7ea7\u522b\u7684\u53d8\u91cf<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5728\u5927\u578b\u9879\u76ee\u4e2d\uff0c\u6709\u65f6\u9700\u8981\u5728\u6574\u4e2a\u6a21\u5757\u8303\u56f4\u5185\u5171\u4eab\u6570\u636e\u3002\u4f60\u53ef\u4ee5\u5b9a\u4e49\u6a21\u5757\u7ea7\u522b\u7684\u53d8\u91cf\u6765\u5b9e\u73b0\u8fd9\u4e00\u76ee\u7684\u3002\u4f46\u8bf7\u8bb0\u4f4f\uff0c\u8fd9\u6837\u505a\u53ef\u80fd\u4f1a\u589e\u52a0\u6a21\u5757\u95f4\u7684\u8026\u5408\u5ea6\uff0c\u8981\u8c28\u614e\u4f7f\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>#&nbsp;my_module.py<\/em><br>shared_data&nbsp;=&nbsp;&#91;]<br><br>def&nbsp;add_to_shared(data):<br>&nbsp;&nbsp;&nbsp;&nbsp;shared_data.append(data)<br><br>def&nbsp;get_shared():<br>&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;shared_data<br><br><em>#&nbsp;\u53e6\u4e00\u4e2a\u6587\u4ef6\u4e2d\u4f7f\u7528<\/em><br>import&nbsp;my_module<br><br>my_module.add_to_shared(\"Hello\")<br>print(my_module.get_shared())&nbsp;<em>#&nbsp;\u8f93\u51fa:&nbsp;&#91;'Hello']<\/em><\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E7%9A%84%E6%9B%BF%E4%BB%A3%E6%96%B9%E6%A1%88%EF%BC%9A%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6%E4%B8%8E%E7%8E%AF%E5%A2%83%E5%8F%98%E9%87%8F\"><\/span><strong>10. \u5168\u5c40\u53d8\u91cf\u7684\u66ff\u4ee3\u65b9\u6848\uff1a\u914d\u7f6e\u6587\u4ef6\u4e0e\u73af\u5883\u53d8\u91cf<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5728\u5904\u7406\u914d\u7f6e\u4fe1\u606f\u6216\u5e94\u7528\u8bbe\u7f6e\u65f6\uff0c\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\uff08\u5982<code>.ini<\/code>, <code>.json<\/code>, \u6216\u73af\u5883\u53d8\u91cf\uff09\u662f\u4e00\u4e2a\u66f4\u597d\u7684\u9009\u62e9\uff0c\u800c\u4e0d\u662f\u786c\u7f16\u7801\u5168\u5c40\u53d8\u91cf\u3002\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u7075\u6d3b\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><em>#&nbsp;\u5047\u8bbe\u6709\u4e00\u4e2aconfig.json<\/em><br>{<br>&nbsp;&nbsp;&nbsp;&nbsp;\"database\":&nbsp;\"my_db\",<br>&nbsp;&nbsp;&nbsp;&nbsp;\"port\":&nbsp;5432<br>}<br><br>import&nbsp;json<br>import&nbsp;os<br><br><em>#&nbsp;\u8bfb\u53d6\u914d\u7f6e\u6587\u4ef6<\/em><br>with&nbsp;open('config.json')&nbsp;as&nbsp;f:<br>&nbsp;&nbsp;&nbsp;&nbsp;config&nbsp;=&nbsp;json.load(f)<br><br><em>#&nbsp;\u6216\u8005\u4f7f\u7528\u73af\u5883\u53d8\u91cf<\/em><br>DB_NAME&nbsp;=&nbsp;os.getenv('DB_NAME',&nbsp;'default_db')&nbsp;<em>#&nbsp;\u5982\u679c\u73af\u5883\u53d8\u91cf\u4e0d\u5b58\u5728\uff0c\u5219\u4f7f\u7528'default_db'<\/em><\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AE%A1%E7%90%86%E5%99%A8%E4%B8%8Ewith%E8%AF%AD%E5%8F%A5\"><\/span><strong>11. \u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u4e0e<code>with<\/code>\u8bed\u53e5<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u867d\u7136\u8fd9\u4e0d\u662f\u76f4\u63a5\u5173\u4e8e\u53d8\u91cf\u4f5c\u7528\u57df\u7684\uff0c\u4f46\u4e86\u89e3\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u53ef\u4ee5\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7ba1\u7406\u8d44\u6e90\uff0c\u6bd4\u5982\u6587\u4ef6\u64cd\u4f5c\u65f6\u7684\u81ea\u52a8\u5173\u95ed\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>with&nbsp;open('myfile.txt',&nbsp;'w')&nbsp;as&nbsp;file:<br>&nbsp;&nbsp;&nbsp;&nbsp;file.write(\"Hello,&nbsp;world!\")<br><em>#&nbsp;\u6587\u4ef6\u5728\u8fd9\u91cc\u81ea\u52a8\u5173\u95ed\uff0c\u65e0\u9700\u663e\u5f0f\u8c03\u7528file.close()<\/em><\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u7684<code>file<\/code>\u53d8\u91cf\u5728<code>with<\/code>\u5757\u5185\u6709\u6548\uff0c\u4e00\u65e6\u6267\u884c\u5b8c\u6bd5\uff0cPython\u4f1a\u786e\u4fdd\u8d44\u6e90\u5f97\u5230\u91ca\u653e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_%E9%97%AD%E5%8C%85%E7%9A%84%E9%AB%98%E7%BA%A7%E5%BA%94%E7%94%A8%EF%BC%9A%E8%AE%B0%E5%BF%86%E5%8C%96\"><\/span><strong>12. \u95ed\u5305\u7684\u9ad8\u7ea7\u5e94\u7528\uff1a\u8bb0\u5fc6\u5316<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u8bb0\u5fc6\u5316\u662f\u4e00\u79cd\u4f18\u5316\u6280\u672f\uff0c\u7528\u4e8e\u5b58\u50a8\u51fd\u6570\u8ba1\u7b97\u7684\u4e2d\u95f4\u7ed3\u679c\uff0c\u51cf\u5c11\u91cd\u590d\u8ba1\u7b97\u3002\u8fd9\u5bf9\u4e8e\u6709\u91cd\u53e0\u5b50\u95ee\u9898\u7684\u9012\u5f52\u51fd\u6570\u5c24\u5176\u6709\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def&nbsp;memoize(func):<br>&nbsp;&nbsp;&nbsp;&nbsp;cache&nbsp;=&nbsp;{}<br>&nbsp;&nbsp;&nbsp;&nbsp;def&nbsp;wrapper(*args):<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;args&nbsp;not&nbsp;in&nbsp;cache:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cache&#91;args]&nbsp;=&nbsp;func(*args)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;cache&#91;args]<br>&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;wrapper<br><br>@memoize<br>def&nbsp;fibonacci(n):<br>&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;n&nbsp;&lt;=&nbsp;1:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;n<br>&nbsp;&nbsp;&nbsp;&nbsp;else:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;fibonacci(n-1)&nbsp;+&nbsp;fibonacci(n-2)<br><br>print(fibonacci(10))&nbsp;<em>#&nbsp;55\uff0c\u800c\u4e14\u53ea\u8ba1\u7b97\u4e86\u4e00\u6b21n=1\u5230n=10<\/em><\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c<code>memoize<\/code>\u88c5\u9970\u5668\u521b\u5efa\u4e86\u4e00\u4e2a\u95ed\u5305\uff0c\u5b83\u8bb0\u5f55\u4e86\u51fd\u6570\u8c03\u7528\u7684\u7ed3\u679c\uff0c\u907f\u514d\u4e86\u91cd\u590d\u52b3\u52a8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5929\u6211\u4eec\u8981\u6765\u804a\u804a\u4e00\u4e2a\u8ba9\u4eba\u53c8\u7231\u53c8\u6068\u7684\u8bdd\u9898\u2014\u2014\u5c40\u90e8\u53d8\u91cf\u4e0e\u5168\u5c40\u53d8\u91cf\u7684\u516b\u5927\u8ff7\u96fe\u3002\u5728Python\u7684\u4e16\u754c\u91cc\uff0c\u53d8\u91cf&hellip; <a href=\"http:\/\/viplao.com\/index.php\/2024\/12\/13\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-%e4%b8%80%e6%96%87%e6%90%9e%e6%87%82python%e5%b1%80%e9%83%a8%e5%8f%98%e9%87%8f%e4%b8%8e%e5%85%a8%e5%b1%80%e5%8f%98%e9%87%8f%e7%9a%8412\/\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">PYTHON\u57fa\u7840\u6280\u80fd \u2013\u00a0\u4e00\u6587\u641e\u61c2Python\u5c40\u90e8\u53d8\u91cf\u4e0e\u5168\u5c40\u53d8\u91cf\u768412\u5927\u9677\u9631<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[28],"views":667,"_links":{"self":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/2931"}],"collection":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/comments?post=2931"}],"version-history":[{"count":1,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/2931\/revisions"}],"predecessor-version":[{"id":2932,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/2931\/revisions\/2932"}],"wp:attachment":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/media?parent=2931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/categories?post=2931"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/tags?post=2931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}