{"id":3102,"date":"2025-06-03T16:20:26","date_gmt":"2025-06-04T08:55:26","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3102"},"modified":"2025-06-04T16:20:26","modified_gmt":"2025-06-04T08:55:26","slug":"%e4%bd%bf%e7%94%a8python%e7%9a%84format%e5%87%bd%e6%95%b8%e7%b0%a1%e5%96%ae%e5%bf%ab%e9%80%9f%e5%9c%b0%e6%a0%bc%e5%bc%8f%e5%8c%96%e5%ad%97%e4%b8%b2-2","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%bd%bf%e7%94%a8python%e7%9a%84format%e5%87%bd%e6%95%b8%e7%b0%a1%e5%96%ae%e5%bf%ab%e9%80%9f%e5%9c%b0%e6%a0%bc%e5%bc%8f%e5%8c%96%e5%ad%97%e4%b8%b2-2\/","title":{"rendered":"2025 \u6700\u65b0\u7248 Python \u5b57\u4e32\u683c\u5f0f\u5316\uff1a\u6df1\u5165\u4e86\u89e3 format() \u51fd\u6578\u7684\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

2025 \u6700\u65b0\u7248 Python \u7684 format() \u51fd\u6578<\/h1>\n

\u5728 Python \u4e2d\uff0c`format()` \u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u4e14\u9748\u6d3b\u7684\u5de5\u5177\uff0c\u7528\u65bc\u683c\u5f0f\u5316\u5b57\u4e32\u3002\u5b83\u8b93\u6211\u5011\u80fd\u5920\u4ee5\u66f4\u6613\u8b80\u7684\u65b9\u5f0f\u5c55\u793a\u6578\u64da\uff0c\u4e26\u65b9\u4fbf\u5730\u5c07\u8b8a\u6578\u63d2\u5165\u5b57\u4e32\u3002\u96a8\u8457 Python \u7684\u6f14\u9032\uff0c\u4f7f\u7528 `f-string`\uff08\u683c\u5f0f\u5316\u5b57\u4e32\u5b57\u9762\u91cf\uff09\u4e5f\u6210\u70ba\u4e86\u4e00\u7a2e\u66f4\u7c21\u6f54\u7684\u66ff\u4ee3\u65b9\u6848\uff0c\u4f46\u4e86\u89e3 `format()` \u7684\u4f7f\u7528\u4ecd\u7136\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

### format() \u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5<\/p>\n

`format()` \u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

“`python
\nformat(value[, format_spec])
\n“`<\/p>\n

– **value**\uff1a\u8981\u683c\u5f0f\u5316\u7684\u503c\u3002
\n– **format_spec**\uff1a\u6307\u5b9a\u683c\u5f0f\u7684\u5b57\u4e32\uff0c\u9019\u662f\u53ef\u9078\u7684\u3002<\/p>\n

### \u57fa\u672c\u7bc4\u4f8b<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 `format()` \u51fd\u6578\uff1a<\/p>\n

“`python
\nname = ‘John’
\nprint(‘Hello, {}’.format(name))
\n“`<\/p>\n

\u8f38\u51fa\u7d50\u679c\uff1a<\/p>\n

“`
\nHello, John
\n“`<\/p>\n

\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5c07\u8b8a\u6578 **name** \u63d2\u5165\u5230\u5b57\u4e32\u4e2d\uff0c\u4e26\u4f7f\u7528 `format()` \u51fd\u6578\u9032\u884c\u683c\u5f0f\u5316\u3002<\/p>\n

### \u66f4\u8907\u96dc\u7684\u7bc4\u4f8b<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u66f4\u8907\u96dc\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 `format()` \u51fd\u6578\u4f86\u683c\u5f0f\u5316\u591a\u500b\u8b8a\u6578\uff1a<\/p>\n

“`python
\nname = ‘John’
\nage = 20
\nprint(‘{0} is {1} years old’.format(name, age))
\n“`<\/p>\n

\u8f38\u51fa\u7d50\u679c\uff1a<\/p>\n

“`
\nJohn is 20 years old
\n“`<\/p>\n

\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5c07\u8b8a\u6578 **name** \u548c **age** \u63d2\u5165\u5230\u5b57\u4e32\u4e2d\uff0c\u4e26\u4f7f\u7528 `format()` \u51fd\u6578\u9032\u884c\u683c\u5f0f\u5316\u3002<\/p>\n

### \u932f\u8aa4\u6392\u9664<\/p>\n

\u5728\u4f7f\u7528 `format()` \u51fd\u6578\u6642\uff0c\u5e38\u898b\u7684\u932f\u8aa4\u5305\u62ec\uff1a<\/p>\n

– **\u7d22\u5f15\u932f\u8aa4**\uff1a\u5982\u679c\u5728\u683c\u5f0f\u5316\u5b57\u4e32\u4e2d\u5f15\u7528\u4e0d\u5b58\u5728\u7684\u7d22\u5f15\uff0c\u6703\u5f15\u767c `IndexError`\u3002
\n– **\u683c\u5f0f\u932f\u8aa4**\uff1a\u4f7f\u7528\u4e0d\u6b63\u78ba\u7684\u683c\u5f0f\u898f\u7bc4\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u5916\u7684\u8f38\u51fa\u3002<\/p>\n

\u4f8b\u5982\uff1a<\/p>\n

“`python
\n# \u932f\u8aa4\u7bc4\u4f8b
\nprint(‘{0} is {1} years old’.format(name))
\n“`<\/p>\n

\u9019\u5c07\u5f15\u767c `IndexError`\uff0c\u56e0\u70ba\u53ea\u63d0\u4f9b\u4e86\u4e00\u500b\u53c3\u6578\u3002<\/p>\n

### \u5ef6\u4f38\u61c9\u7528<\/p>\n

\u5728 Python 3.6 \u53ca\u4ee5\u5f8c\u7248\u672c\u4e2d\uff0c\u63a8\u85a6\u4f7f\u7528 `f-string` \u9032\u884c\u5b57\u4e32\u683c\u5f0f\u5316\u3002\u4ee5\u4e0b\u662f `f-string` \u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nname = ‘John’
\nage = 20
\nprint(f'{name} is {age} years old’)
\n“`<\/p>\n

\u9019\u7a2e\u65b9\u6cd5\u7c21\u6f54\u4e14\u53ef\u8b80\u6027\u9ad8\uff0c\u662f\u7576\u524d\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

### \u5c0f\u7d50<\/p>\n

`format()` \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u8b93\u5b57\u4e32\u683c\u5f0f\u5316\u8b8a\u5f97\u7c21\u55ae\u660e\u77ad\u3002\u7121\u8ad6\u662f\u57fa\u672c\u7684\u8b8a\u6578\u63d2\u5165\uff0c\u9084\u662f\u66f4\u8907\u96dc\u7684\u683c\u5f0f\u5316\u9700\u6c42\uff0c`format()` \u51fd\u6578\u90fd\u80fd\u6709\u6548\u61c9\u5c0d\u3002\u5c0d\u65bc\u66f4\u9ad8\u6548\u7684\u683c\u5f0f\u5316\u65b9\u5f0f\uff0c\u5efa\u8b70\u5b78\u7fd2\u4e26\u4f7f\u7528 `f-string`\u3002<\/p>\n

\u5982\u9700\u6df1\u5165\u4e86\u89e3 Python \u7684\u66f4\u591a\u6280\u5de7\u548c\u6559\u5b78\uff0c\u8acb\u53c3\u8003\u6211\u5011\u7684 [Vocus Python \u6559\u5b78](https:\/\/vocus.cc) \u6216 [Miner Python \u9032\u968e\u6559\u5b78](https:\/\/miner.tw)\u3002<\/p>\n

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

**Q1: Python \u7684 `format()` \u51fd\u6578\u548c f-string \u6709\u4ec0\u9ebc\u5340\u5225\uff1f**
\nA1: `format()` \u51fd\u6578\u662f\u4e00\u7a2e\u820a\u7684\u683c\u5f0f\u5316\u65b9\u5f0f\uff0c\u800c f-string \u662f\u5f9e Python 3.6 \u958b\u59cb\u5f15\u5165\u7684\u65b0\u8a9e\u6cd5\uff0c\u63d0\u4f9b\u66f4\u7c21\u6f54\u7684\u683c\u5f0f\u5316\u65b9\u5f0f\uff0c\u4e26\u4e14\u6027\u80fd\u66f4\u4f73\u3002<\/p>\n

**Q2: \u5982\u4f55\u4f7f\u7528 `format()` \u51fd\u6578\u9032\u884c\u6578\u5b57\u683c\u5f0f\u5316\uff1f**
\nA2: \u53ef\u4ee5\u5728 `format_spec` \u4e2d\u6307\u5b9a\u6578\u5b57\u683c\u5f0f\uff0c\u4f8b\u5982\uff1a`print(‘Price: {:.2f}’.format(10.5))`\uff0c\u9019\u5c07\u8f38\u51fa `Price:<\/span>10.50`\u3002<\/p>\n

**Q3: `format()` \u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u683c\u5f0f\u5316\u65e5\u671f\u55ce\uff1f**
\nA3: \u662f\u7684\uff0c`format()` \u51fd\u6578\u53ef\u4ee5\u8207 datetime \u6a21\u7d44\u7d50\u5408\u4f7f\u7528\u4f86\u683c\u5f0f\u5316\u65e5\u671f\uff0c\u4f8b\u5982\uff1a`print(‘Today is: {}’.format(datetime.datetime.now()))`\u3002<\/p>\n

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

\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Python\u7684Format()\u51fd\u6578\u4f86\u683c\u5f0f\u5316\u5b57\u4e32\uff0c\u4ee5\u7372\u5f97\u66f4\u597d\u7684SEO\u512a\u5316\u6548\u679c\u3002\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Format()\u51fd\u6578\u4f86\u63d0\u9ad8\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\uff0c\u4e26\u66f4\u6709\u6548\u5730\u7ba1\u7406\u5b57\u4e32\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-3102","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-O2","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3102","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=3102"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3102\/revisions"}],"predecessor-version":[{"id":12932,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3102\/revisions\/12932"}],"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=3102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}