{"id":3320,"date":"2025-05-28T15:49:58","date_gmt":"2025-06-04T08:14:58","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3320"},"modified":"2025-06-04T15:49:58","modified_gmt":"2025-06-04T08:14:58","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84delete%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84delete%e5%87%bd%e6%95%b8\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u7684 `del` \u95dc\u9375\u5b57\uff1a\u522a\u9664\u5143\u7d20\u7684\u6700\u4f73\u5be6\u8e10\uff082025 \u66f4\u65b0\uff09"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Python, del, delete, \u522a\u9664\u5143\u7d20\"><\/p>\n<h1>\u6df1\u5165\u4e86\u89e3 Python \u7684 `del` \u95dc\u9375\u5b57<\/h1>\n<p>\u5728 Python \u7de8\u7a0b\u4e2d\uff0c`del` \u95dc\u9375\u5b57\u662f\u4e00\u500b\u975e\u5e38\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u8b93\u4f60\u5f9e\u5b57\u5178\u3001\u5217\u8868\u6216\u8b8a\u6578\u4e2d\u522a\u9664\u6307\u5b9a\u7684\u5143\u7d20\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6559\u60a8\u5982\u4f55\u6b63\u78ba\u4f7f\u7528 `del` \u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\u7d50\u69cb\uff0c\u4e26\u63a2\u8a0e\u5176\u6700\u4f73\u5be6\u8e10\u53ca\u53ef\u80fd\u9047\u5230\u7684\u554f\u984c\u3002<\/p>\n<h2>\u4f7f\u7528 `del` \u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u4f7f\u7528 `del` \u95dc\u9375\u5b57\u7684\u65b9\u6cd5\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u5f9e\u5b57\u5178\u4e2d\u522a\u9664\u5143\u7d20\u7684\u57fa\u672c\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: python\">\n# \u5efa\u7acb\u4e00\u500b\u5b57\u5178\nmy_dict = {\n    'name': 'John',\n    'age': 20,\n    'city': 'New York'\n}\n\n# \u4f7f\u7528 del \u522a\u9664 'name' \u9375\u503c\ndel my_dict['name']\nprint(my_dict)  # \u8f38\u51fa: {'age': 20, 'city': 'New York'}\n<\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`del` \u4f7f\u6211\u5011\u80fd\u5920\u5feb\u901f\u522a\u9664\u5b57\u5178\u4e2d\u7684 `name` \u9375\u503c\uff0c\u4e26\u4e14\u540c\u6642\u4fdd\u7559\u5176\u4ed6\u9375\u503c\u3002<\/p>\n<h2>\u522a\u9664\u5217\u8868\u4e2d\u7684\u5143\u7d20<\/h2>\n<p>\u9664\u4e86\u5b57\u5178\uff0c`del` \u4e5f\u53ef\u4ee5\u7528\u65bc\u5217\u8868\u4e2d\u522a\u9664\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u5f9e\u5217\u8868\u4e2d\u522a\u9664\u5143\u7d20\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: python\">\n# \u5efa\u7acb\u4e00\u500b\u5217\u8868\nmy_list = [1, 2, 3, 4, 5]\n\n# \u4f7f\u7528 del \u522a\u9664\u7d22\u5f15 2 \u7684\u5143\u7d20\uff08\u7b2c\u4e09\u500b\u5143\u7d20\uff09\ndel my_list[2]\nprint(my_list)  # \u8f38\u51fa: [1, 2, 4, 5]\n<\/pre>\n<p>\u5728\u9019\u88e1\uff0c`del` \u8b93\u6211\u5011\u80fd\u5920\u6839\u64da\u7d22\u5f15\u522a\u9664\u5217\u8868\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<h2>\u4f7f\u7528 `del` \u7684\u512a\u9ede\u8207\u7f3a\u9ede<\/h2>\n<h3>\u512a\u9ede<\/h3>\n<p>&#8211; **\u9ad8\u6548\u6027**\uff1a`del` \u53ef\u4ee5\u5feb\u901f\u522a\u9664\u4e0d\u9700\u8981\u7684\u5143\u7d20\uff0c\u800c\u7121\u9700\u91cd\u65b0\u5efa\u7acb\u6578\u64da\u7d50\u69cb\u3002<br \/>\n&#8211; **\u7c21\u6f54\u6027**\uff1a\u8a9e\u6cd5\u7c21\u55ae\uff0c\u6613\u65bc\u7406\u89e3\u3002<\/p>\n<h3>\u7f3a\u9ede<\/h3>\n<p>&#8211; **\u55ae\u4e00\u522a\u9664**\uff1a`del` \u53ea\u80fd\u522a\u9664\u4e00\u500b\u5143\u7d20\uff0c\u82e5\u9700\u8981\u522a\u9664\u591a\u500b\u5143\u7d20\uff0c\u5fc5\u9808\u9010\u4e00\u57f7\u884c\u3002<br \/>\n&#8211; **\u932f\u8aa4\u8655\u7406**\uff1a\u82e5\u522a\u9664\u4e0d\u5b58\u5728\u7684\u9375\u503c\u6216\u7d22\u5f15\uff0c\u5c07\u5f15\u767c `KeyError` \u6216 `IndexError`\uff0c\u9700\u52a0\u4ee5\u6ce8\u610f\u3002<\/p>\n<h2>\u932f\u8aa4\u6392\u9664<\/h2>\n<p>\u5728\u4f7f\u7528 `del` \u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u932f\u8aa4\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>&#8211; **KeyError**\uff1a\u7576\u4f60\u5617\u8a66\u522a\u9664\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u9375\u503c\u6642\u767c\u751f\u3002\u70ba\u4e86\u907f\u514d\u6b64\u932f\u8aa4\uff0c\u53ef\u4ee5\u5148\u6aa2\u67e5\u8a72\u9375\u503c\u662f\u5426\u5b58\u5728\uff1a<\/p>\n<pre class=\"brush: python\">\nif 'name' in my_dict:\n    del my_dict['name']\n<\/pre>\n<p>&#8211; **IndexError**\uff1a\u7576\u4f60\u5617\u8a66\u522a\u9664\u4e00\u500b\u7d22\u5f15\u8d85\u51fa\u7bc4\u570d\u7684\u5143\u7d20\u6642\u767c\u751f\u3002\u9019\u6642\u53ef\u4ee5\u6aa2\u67e5\u5217\u8868\u7684\u9577\u5ea6\uff1a<\/p>\n<pre class=\"brush: python\">\nif len(my_list) > 2:\n    del my_list[2]\n<\/pre>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>\u9664\u4e86\u57fa\u672c\u7684\u522a\u9664\u64cd\u4f5c\uff0c`del` \u9084\u53ef\u4ee5\u7528\u4f86\u522a\u9664\u8b8a\u6578\u3002\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: python\">\nx = 10\ndel x\n# print(x)  # \u9019\u5c07\u5f15\u767c NameError\uff0c\u56e0\u70ba x \u5df2\u88ab\u522a\u9664\n<\/pre>\n<p>\u9019\u6a23\u7684\u7528\u6cd5\u5728\u7ba1\u7406\u5927\u578b\u6578\u64da\u6642\u975e\u5e38\u6709\u7528\uff0c\u80fd\u5920\u91cb\u653e\u5167\u5b58\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>Python \u7684 `del` \u95dc\u9375\u5b57\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u8b93\u60a8\u80fd\u5920\u6709\u6548\u5730\u522a\u9664\u5b57\u5178\u6216\u5217\u8868\u4e2d\u7684\u6307\u5b9a\u5143\u7d20\u3002\u900f\u904e\u9019\u7bc7\u6587\u7ae0\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u638c\u63e1\u5176\u4f7f\u7528\u65b9\u6cd5\u3001\u512a\u7f3a\u9ede\u4ee5\u53ca\u5e38\u898b\u7684\u932f\u8aa4\u8655\u7406\u6280\u5de7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u60f3\u8981\u9032\u4e00\u6b65\u5b78\u7fd2 Python \u7684\u5176\u4ed6\u6280\u8853\uff0c\u8acb\u53c3\u8003\u9019\u7bc7 [Python \u7a0b\u5f0f\u8a2d\u8a08\u57fa\u790e\u6559\u5b78](https:\/\/vocus.cc)\uff0c\u9019\u88e1\u6709\u8a31\u591a\u6709\u7528\u7684\u8cc7\u6e90\uff01<\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>1. \u4f7f\u7528 `del` \u522a\u9664\u5143\u7d20\u5f8c\uff0c\u8a72\u5143\u7d20\u6703\u88ab\u6c38\u4e45\u522a\u9664\u55ce\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u4f7f\u7528 `del` \u522a\u9664\u7684\u5143\u7d20\u7121\u6cd5\u6062\u5fa9\uff0c\u8acb\u5728\u522a\u9664\u4e4b\u524d\u78ba\u8a8d\u4e0d\u518d\u9700\u8981\u8a72\u5143\u7d20\u3002<\/p>\n<h3>2. \u5982\u4f55\u5b89\u5168\u5730\u4f7f\u7528 `del` \u522a\u9664\u5b57\u5178\u4e2d\u7684\u9375\u503c\uff1f<\/h3>\n<p>\u5728\u522a\u9664\u4e4b\u524d\uff0c\u53ef\u4ee5\u4f7f\u7528 `if` \u8a9e\u53e5\u6aa2\u67e5\u9375\u503c\u662f\u5426\u5b58\u5728\uff0c\u4ee5\u907f\u514d `KeyError` \u932f\u8aa4\u3002<\/p>\n<h3>3. `del` \u662f\u5426\u53ef\u4ee5\u7528\u65bc\u522a\u9664\u591a\u500b\u5143\u7d20\uff1f<\/h3>\n<p>`del` \u53ea\u80fd\u4e00\u6b21\u522a\u9664\u4e00\u500b\u5143\u7d20\uff0c\u82e5\u9700\u522a\u9664\u591a\u500b\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u8ff4\u5708\u7d50\u5408\u591a\u6b21\u8abf\u7528 `del`\u3002<\/p>\n<p>&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2Python\u4e2d\u7684delete()\u51fd\u6578\uff0c\u4e86\u89e3\u5b83\u7684\u529f\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u522a\u9664\u7279\u5b9a\u5143\u7d20\uff0c\u4ee5\u53ca\u5b83\u7684\u512a\u9ede\u548c\u7f3a\u9ede\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-3320","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-Ry","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3320"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3320\/revisions"}],"predecessor-version":[{"id":3321,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3320\/revisions\/3321"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}