{"id":3422,"date":"2025-06-02T14:55:55","date_gmt":"2025-06-04T07:50:54","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3422"},"modified":"2025-06-04T14:55:55","modified_gmt":"2025-06-04T07:50:54","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84delitem%e5%87%bd%e6%95%b8-2","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84delitem%e5%87%bd%e6%95%b8-2\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u7684 delitem() \u51fd\u6578\uff1a\u6700\u4f73\u5be6\u8e10\u8207\u5be6\u7528\u7bc4\u4f8b\uff082025 \u6700\u65b0\u7248\uff09"},"content":{"rendered":"

<\/p>\n

\u6df1\u5165\u4e86\u89e3 Python \u7684 delitem() \u51fd\u6578<\/h1>\n

\u5728 Python \u4e2d\uff0c`delitem()` \u51fd\u6578\u7528\u65bc\u522a\u9664\u5b57\u5178\u4e2d\u7684\u9375\u503c\u5c0d\u3002\u9019\u662f\u4e00\u500b\u5b57\u5178\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u79fb\u9664\u7279\u5b9a\u7684\u9375\u53ca\u5176\u5c0d\u61c9\u7684\u503c\u3002\u96a8\u8457 Python \u7684\u6301\u7e8c\u66f4\u65b0\uff0c\u7406\u89e3\u9019\u4e00\u529f\u80fd\u7684\u6700\u65b0\u7528\u6cd5\u548c\u6700\u4f73\u5be6\u8e10\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

delitem() \u51fd\u6578\u7684\u8a9e\u6cd5<\/h2>\n

`delitem()` \u51fd\u6578\u7684\u8a9e\u6cd5\u5982\u4e0b\uff0c\u9019\u88e1\u63d0\u4f9b\u4e86 2025 \u5e74\u7684\u6700\u65b0\u8a9e\u6cd5\uff1a<\/p>\n

“`python
\ndict.__delitem__(key)
\n“`<\/p>\n

\u53c3\u6578\u8aaa\u660e\uff1a<\/p>\n

– **key** – \u8981\u522a\u9664\u7684\u9375\u503c\u5c0d\u7684\u9375\u3002<\/p>\n

delitem() \u51fd\u6578\u7684\u5be6\u4f5c\u7bc4\u4f8b<\/h2>\n

\u4ee5\u4e0b\u7bc4\u4f8b\u5c55\u793a\u4e86 `delitem()` \u51fd\u6578\u7684\u7528\u6cd5\uff1a<\/p>\n

“`python
\n# \u5b9a\u7fa9\u4e00\u500b\u5b57\u5178
\nperson = {
\n “name”: “John”,
\n “age”: 36,
\n “country”: “Norway”
\n}<\/p>\n

# \u4f7f\u7528 delitem() \u522a\u9664\u9375\u503c\u5c0d
\nperson.__delitem__(“age”)<\/p>\n

# \u986f\u793a\u5b57\u5178
\nprint(person)
\n“`<\/p>\n

\u57f7\u884c\u4e0a\u9762\u7684\u7a0b\u5f0f\u5f8c\uff0c\u5f97\u5230\u7684\u7d50\u679c\u70ba\uff1a<\/p>\n

“`python
\n{‘name’: ‘John’, ‘country’: ‘Norway’}
\n“`<\/p>\n

\u5f9e\u4e0a\u9762\u7684\u7d50\u679c\u53ef\u4ee5\u770b\u51fa\uff0c`age` \u9375\u503c\u5c0d\u5df2\u7d93\u88ab\u6210\u529f\u522a\u9664\u4e86\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664<\/h2>\n

\u5728\u4f7f\u7528 `delitem()` \u51fd\u6578\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u932f\u8aa4\uff1a<\/p>\n

1. **KeyError**\uff1a\u7576\u4f60\u5617\u8a66\u522a\u9664\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u9375\u6642\uff0c\u6703\u5f15\u767c `KeyError`\u3002\u4f8b\u5982\uff1a<\/p>\n

“`python
\n person.__delitem__(“height”) # \u5c07\u6703\u5f15\u767c KeyError
\n “`<\/p>\n

\u70ba\u907f\u514d\u6b64\u932f\u8aa4\uff0c\u53ef\u4ee5\u5148\u6aa2\u67e5\u9375\u662f\u5426\u5b58\u5728\uff1a<\/p>\n

“`python
\n if “height” in person:
\n person.__delitem__(“height”)
\n “`<\/p>\n

\u5ef6\u4f38\u61c9\u7528<\/h2>\n

`delitem()` \u51fd\u6578\u4e0d\u50c5\u9069\u7528\u65bc\u7c21\u55ae\u7684\u5b57\u5178\u64cd\u4f5c\uff0c\u9084\u53ef\u4ee5\u7528\u65bc\u66f4\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\uff0c\u4f8b\u5982\u5d4c\u5957\u5b57\u5178\u3002\u4ee5\u4e0b\u7bc4\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u522a\u9664\u5d4c\u5957\u5b57\u5178\u4e2d\u7684\u9805\u76ee\uff1a<\/p>\n

“`python
\n# \u5b9a\u7fa9\u4e00\u500b\u5d4c\u5957\u5b57\u5178
\ndata = {
\n “user”: {
\n “name”: “Alice”,
\n “age”: 30,
\n “city”: “Paris”
\n }
\n}<\/p>\n

# \u522a\u9664\u5d4c\u5957\u5b57\u5178\u4e2d\u7684\u9375\u503c\u5c0d
\ndata[“user”].__delitem__(“age”)<\/p>\n

# \u986f\u793a\u66f4\u65b0\u5f8c\u7684\u5b57\u5178
\nprint(data)
\n“`<\/p>\n

\u9019\u6a23\u7684\u64cd\u4f5c\u540c\u6a23\u6709\u6548\uff0c\u4e26\u4e14\u80fd\u5920\u9748\u6d3b\u8655\u7406\u66f4\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

Python \u7684 `delitem()` \u51fd\u6578\u662f\u522a\u9664\u5b57\u5178\u4e2d\u7279\u5b9a\u9375\u503c\u5c0d\u7684\u6709\u6548\u5de5\u5177\u3002\u900f\u904e\u4e0a\u8ff0\u7684\u4ecb\u7d39\u53ca\u7bc4\u4f8b\uff0c\u60a8\u61c9\u8a72\u5c0d\u5982\u4f55\u4f7f\u7528\u9019\u500b\u51fd\u6578\u6709\u4e86\u66f4\u6df1\u5165\u7684\u4e86\u89e3\u3002\u4e86\u89e3\u5176\u6700\u4f73\u5be6\u8e10\u548c\u932f\u8aa4\u8655\u7406\u65b9\u5f0f\uff0c\u5c07\u4f7f\u60a8\u5728\u958b\u767c\u4e2d\u66f4\u52a0\u5f97\u5fc3\u61c9\u624b\u3002<\/p>\n

\u5982\u679c\u60a8\u60f3\u9032\u4e00\u6b65\u4e86\u89e3 Python \u7684\u5176\u4ed6\u5b57\u5178\u64cd\u4f5c\uff0c\u53ef\u4ee5\u53c3\u8003\u9019\u7bc7 [Python \u5b57\u5178\u64cd\u4f5c\u6559\u5b78](https:\/\/vocus.cc\/article\/your-link)\u3002<\/p>\n

Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n

**Q1: delitem() \u51fd\u6578\u548c del \u8a9e\u53e5\u6709\u4ec0\u9ebc\u5340\u5225\uff1f**
\nA1: `delitem()` \u51fd\u6578\u662f\u5b57\u5178\u7684\u5167\u5efa\u65b9\u6cd5\uff0c\u800c `del` \u662f Python \u7684\u8a9e\u6cd5\u4f86\u522a\u9664\u8b8a\u91cf\u6216\u5c0d\u8c61\u3002\u5169\u8005\u90fd\u53ef\u4ee5\u7528\u4f86\u522a\u9664\u5b57\u5178\u4e2d\u7684\u9375\u503c\u5c0d\uff0c\u4f46 `del` \u66f4\u70ba\u76f4\u89c0\u3002<\/p>\n

**Q2: \u5982\u679c\u6211\u522a\u9664\u4e00\u500b\u9375\u503c\u5c0d\uff0c\u8a72\u9375\u9084\u80fd\u518d\u6b21\u4f7f\u7528\u55ce\uff1f**
\nA2: \u4e00\u65e6\u522a\u9664\u9375\u53ca\u5176\u5c0d\u61c9\u7684\u503c\uff0c\u8a72\u9375\u5c07\u4e0d\u518d\u5b58\u5728\u65bc\u5b57\u5178\u4e2d\u3002\u5982\u679c\u60a8\u60f3\u518d\u6b21\u4f7f\u7528\u8a72\u9375\uff0c\u5fc5\u9808\u91cd\u65b0\u6dfb\u52a0\u5b83\u3002<\/p>\n

**Q3: delitem() \u53ef\u4ee5\u7528\u65bc\u522a\u9664\u5217\u8868\u4e2d\u7684\u5143\u7d20\u55ce\uff1f**
\nA3: \u4e0d\u53ef\u4ee5\u3002`delitem()` \u53ea\u9069\u7528\u65bc\u5b57\u5178\uff0c\u82e5\u8981\u522a\u9664\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0c\u9700\u4f7f\u7528 `list.remove()` \u6216 `del` \u8a9e\u53e5\u3002<\/p>\n

—<\/p>\n","protected":false},"excerpt":{"rendered":"

delitem()\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u7528\u65bc\u522a\u9664\u5b57\u5178\u4e2d\u7684\u9375\u503c\u5c0d\uff0c\u4e26\u4e14\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u5b57\u5178\u4e2d\u7684\u5143\u7d20\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39delitem()\u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\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-3422","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-Tc","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3422","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=3422"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3422\/revisions"}],"predecessor-version":[{"id":12837,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3422\/revisions\/12837"}],"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=3422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}