{"id":3034,"date":"2025-05-31T16:22:41","date_gmt":"2025-06-04T09:05:41","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3034"},"modified":"2025-06-04T16:22:41","modified_gmt":"2025-06-04T09:05:41","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84contains%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%84contains%e5%87%bd%e6%95%b8\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684 `in` \u904b\u7b97\u7b26\uff1a\u6aa2\u67e5\u5b57\u4e32\u5305\u542b\u6027"},"content":{"rendered":"

<\/p>\n

\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684 `in` \u904b\u7b97\u7b26\uff1a\u6aa2\u67e5\u5b57\u4e32\u5305\u542b\u6027<\/h1>\n

\u5728 Python \u4e2d\uff0c\u6aa2\u67e5\u4e00\u500b\u5b57\u4e32\u662f\u5426\u5305\u542b\u53e6\u4e00\u500b\u5b57\u4e32\u7684\u6700\u5e38\u7528\u65b9\u6cd5\u662f\u4f7f\u7528 `in` \u904b\u7b97\u7b26\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u904e\u53bb\u7684 `contains()` \u51fd\u5f0f\u3002\u9019\u7a2e\u65b9\u5f0f\u4e0d\u50c5\u8a9e\u6cd5\u7c21\u55ae\uff0c\u66f4\u7b26\u5408 Python \u7684\u6700\u4f73\u5be6\u8e10\uff0c\u5c24\u5176\u662f\u5728 2025 \u5e74\u7684\u6700\u65b0\u7248\u672c\u4e2d\u3002<\/p>\n

\u4f7f\u7528 `in` \u904b\u7b97\u7b26<\/h2>\n

\u4f7f\u7528 `in` \u904b\u7b97\u7b26\u6aa2\u67e5\u5b57\u4e32\u5305\u542b\u6027\u975e\u5e38\u7c21\u55ae\u3002\u4f60\u53ea\u9700\u8981\u5c07\u8981\u6aa2\u67e5\u7684\u5b57\u4e32\u653e\u5728 `in` \u904b\u7b97\u7b26\u7684\u5de6\u5074\uff0c\u4e26\u5c07\u641c\u5c0b\u7684\u5b57\u4e32\u653e\u5728\u53f3\u5074\u3002\u5982\u679c\u641c\u5c0b\u7684\u5b57\u4e32\u5b58\u5728\u65bc\u8981\u6aa2\u67e5\u7684\u5b57\u4e32\u4e2d\uff0c\u5247\u6703\u8fd4\u56de `True`\uff0c\u5426\u5247\u8fd4\u56de `False`\u3002<\/p>\n

“`python
\n# \u6aa2\u67e5\u5b57\u4e32 “Hello World” \u662f\u5426\u5305\u542b\u5b57\u4e32 “World”
\nif “World” in “Hello World”:
\n print(“\u5b57\u4e32\u5305\u542b”)
\nelse:
\n print(“\u5b57\u4e32\u4e0d\u5305\u542b”)<\/p>\n

# \u8f38\u51fa\uff1a\u5b57\u4e32\u5305\u542b
\n“`<\/p>\n

\u9019\u7a2e\u5beb\u6cd5\u4e0d\u50c5\u7c21\u6f54\u660e\u77ad\uff0c\u9084\u80fd\u63d0\u9ad8\u7a0b\u5f0f\u7684\u53ef\u8b80\u6027\u3002<\/p>\n

\u6aa2\u67e5\u5b57\u4e32\u7684\u958b\u982d\u548c\u7d50\u5c3e<\/h2>\n

\u9664\u4e86\u6aa2\u67e5\u5b57\u4e32\u662f\u5426\u5305\u542b\u67d0\u500b\u5b57\u4e32\u5916\uff0c\u4f60\u9084\u53ef\u4ee5\u4f7f\u7528 `startswith()` \u548c `endswith()` \u65b9\u6cd5\u4f86\u6aa2\u67e5\u5b57\u4e32\u662f\u5426\u4ee5\u67d0\u500b\u5b57\u5143\u958b\u982d\u6216\u7d50\u5c3e\u3002<\/p>\n

“`python
\n# \u6aa2\u67e5\u5b57\u4e32 “Hello World” \u662f\u5426\u4ee5\u5b57\u5143 “H” \u958b\u982d
\nif “Hello World”.startswith(“H”):
\n print(“\u5b57\u4e32\u4ee5 H \u958b\u982d”)
\nelse:
\n print(“\u5b57\u4e32\u4e0d\u4ee5 H \u958b\u982d”)<\/p>\n

# \u8f38\u51fa\uff1a\u5b57\u4e32\u4ee5 H \u958b\u982d
\n“`<\/p>\n

“`python
\n# \u6aa2\u67e5\u5b57\u4e32 “Hello World” \u662f\u5426\u4ee5\u5b57\u5143 “d” \u7d50\u5c3e
\nif “Hello World”.endswith(“d”):
\n print(“\u5b57\u4e32\u4ee5 d \u7d50\u5c3e”)
\nelse:
\n print(“\u5b57\u4e32\u4e0d\u4ee5 d \u7d50\u5c3e”)<\/p>\n

# \u8f38\u51fa\uff1a\u5b57\u4e32\u4ee5 d \u7d50\u5c3e
\n“`<\/p>\n

\u9019\u4e9b\u65b9\u6cd5\u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u5b57\u4e32\u6aa2\u67e5\uff0c\u8b93\u4f60\u7684\u7a0b\u5f0f\u78bc\u66f4\u52a0\u6e05\u6670\u548c\u6613\u65bc\u7dad\u8b77\u3002<\/p>\n

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

\u5728\u4f7f\u7528\u5b57\u4e32\u6aa2\u67e5\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u5e38\u898b\u932f\u8aa4\uff1a<\/p>\n

1. **\u5927\u5c0f\u5beb\u654f\u611f**\uff1a`in` \u904b\u7b97\u7b26\u548c\u5b57\u4e32\u65b9\u6cd5\u90fd\u662f\u5927\u5c0f\u5beb\u654f\u611f\u7684\uff0c\u78ba\u4fdd\u4f60\u7684\u5b57\u4e32\u5927\u5c0f\u5beb\u4e00\u81f4\u3002
\n2. **\u7a7a\u5b57\u4e32\u6aa2\u67e5**\uff1a\u6aa2\u67e5\u4e00\u500b\u7a7a\u5b57\u4e32\u662f\u5426\u5728\u53e6\u4e00\u500b\u5b57\u4e32\u4e2d\u6642\uff0c\u6703\u8fd4\u56de `True`\uff0c\u56e0\u70ba\u4efb\u4f55\u5b57\u4e32\u90fd\u5305\u542b\u4e00\u500b\u7a7a\u5b57\u4e32\u3002<\/p>\n

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

\u4f60\u53ef\u4ee5\u5c07\u5b57\u4e32\u6aa2\u67e5\u6280\u8853\u61c9\u7528\u65bc\u8a31\u591a\u4e0d\u540c\u7684\u5834\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n

– \u9a57\u8b49\u7528\u6236\u8f38\u5165\u7684\u683c\u5f0f
\n– \u6aa2\u67e5\u6587\u4ef6\u5167\u5bb9
\n– \u904e\u6ffe\u8cc7\u6599\u96c6\u4e2d\u7684\u7279\u5b9a\u9805\u76ee<\/p>\n

\u900f\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u63d0\u5347\u7a0b\u5f0f\u7684\u529f\u80fd\u6027\u548c\u9748\u6d3b\u6027\u3002<\/p>\n

\u7d50\u8ad6<\/h2>\n

\u900f\u904e\u4f7f\u7528 Python \u7684 `in` \u904b\u7b97\u7b26\u8207\u5176\u4ed6\u5b57\u4e32\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u8f15\u9b06\u800c\u6709\u6548\u5730\u6aa2\u67e5\u5b57\u4e32\u7684\u5305\u542b\u6027\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u7c21\u55ae\u6613\u7528\uff0c\u9084\u7b26\u5408\u6700\u65b0\u7684 Python \u8a9e\u6cd5\u898f\u7bc4\u3002<\/p>\n

\u82e5\u60f3\u6df1\u5165\u4e86\u89e3 Python \u5b57\u4e32\u7684\u5176\u4ed6\u529f\u80fd\uff0c\u5efa\u8b70\u53c3\u8003 [\u9019\u88e1\u7684 Python \u5b57\u4e32\u8655\u7406\u6280\u5de7](https:\/\/vocus.cc\/article\/60508a9c6f1a6a001c45f1d7)\u3002<\/p>\n

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

**Q1: `in` \u904b\u7b97\u7b26\u548c `contains()` \u51fd\u5f0f\u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f**
\nA1: \u5728 Python \u4e2d\uff0c`in` \u904b\u7b97\u7b26\u662f\u6aa2\u67e5\u5b57\u4e32\u5305\u542b\u6027\u7684\u63a8\u85a6\u65b9\u5f0f\uff0c\u800c `contains()` \u51fd\u5f0f\u4e26\u4e0d\u5b58\u5728\u65bc Python \u7684\u6a19\u6e96\u5eab\u4e2d\uff0c\u4f7f\u7528 `in` \u66f4\u7b26\u5408 Python \u7684\u8a9e\u6cd5\u6163\u4f8b\u3002<\/p>\n

**Q2: \u5982\u4f55\u5ffd\u7565\u5927\u5c0f\u5beb\u9032\u884c\u5b57\u4e32\u6aa2\u67e5\uff1f**
\nA2: \u4f60\u53ef\u4ee5\u5c07\u5b57\u4e32\u90fd\u8f49\u63db\u70ba\u5c0f\u5beb\u6216\u5927\u5beb\uff0c\u4f8b\u5982\uff1a`”hello” in “Hello World”.lower()`\u3002<\/p>\n

**Q3: \u5982\u4f55\u6aa2\u67e5\u5b57\u4e32\u662f\u5426\u5305\u542b\u591a\u500b\u5b57\u5143\uff1f**
\nA3: \u4f60\u53ef\u4ee5\u4f7f\u7528\u8ff4\u5708\u6216\u5217\u8868\u63a8\u5c0e\u5f0f\u4f86\u6aa2\u67e5\u591a\u500b\u5b57\u5143\u662f\u5426\u5b58\u5728\u65bc\u5b57\u4e32\u4e2d\uff0c\u5177\u9ad4\u53d6\u6c7a\u65bc\u4f60\u7684\u9700\u6c42\u3002
\n—<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5b78\u7fd2Python\u4e2d\u7684contains()\u51fd\u6578\uff0c\u4e86\u89e3\u5b83\u7684\u529f\u80fd\u548c\u4f7f\u7528\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5982\u4f55\u5c07\u5b83\u7528\u65bc\u60a8\u7684\u7a0b\u5e8f\u4e2d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0econtains()\u51fd\u6578\uff0c\u4e26\u63d0\u4f9b\u6709\u95dc\u5982\u4f55\u4f7f\u7528\u5b83\u7684\u5be6\u7528\u793a\u4f8b\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-3034","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-MW","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3034","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=3034"}],"version-history":[{"count":3,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3034\/revisions"}],"predecessor-version":[{"id":12955,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3034\/revisions\/12955"}],"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=3034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}