{"id":275,"date":"2022-05-19T17:16:00","date_gmt":"2022-05-19T09:16:00","guid":{"rendered":""},"modified":"2023-01-17T16:53:48","modified_gmt":"2023-01-17T08:53:48","slug":"python%e5%ad%b8%e7%bf%92%e7%ad%86%e8%a8%98-string-%e5%85%a7%e5%bb%ba%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/kuo.us.to\/wordpress\/python%e5%ad%b8%e7%bf%92%e7%ad%86%e8%a8%98\/275\/","title":{"rendered":"Python\u5b78\u7fd2\u7b46\u8a18: String \u5167\u5efa\u51fd\u6578"},"content":{"rendered":"

 \ud83e\udd4c<\/span><\/p>\n

\n

Python\u5b78\u7fd2\u7b46\u8a18: String \u5167\u5efa\u51fd\u6578<\/h1>\n<\/header>\n
\n

\u4ee5\u4e0b\u5167\u5bb9\u6458\u81eaPython\u5b98\u65b9\u8aaa\u660e\u6587\u4ef6\uff1a<\/p>\n

<\/p>\n
\n
\n
Built-in Types – Python 3.10.4 documentation<\/div>\n
The following sections describe the standard types that are built into the interpreter. The principal built-in types are numerics, sequences, mappings, classes, instances and exceptions. Some collection classes are mutable. The methods that add, subtract, or rearrange their members in place, and don’t return a specific item, never return the collection instance itself but .<\/div>\n<\/div>\n
https:\/\/docs.python.org\/zh-tw\/3\/library\/stdtypes.html?highlight=replace#text-sequence-type-str<\/div>\n<\/div>\n

<\/a><\/a><\/figure>\n

str.capitalize<\/strong>()<\/p>\n

\u8fd4\u56de\u539f\u5b57\u4e32\u7684\u526f\u672c\uff0c\u5176\u9996\u500b\u5b57\u5143\u5927\u5beb\uff0c\u5176\u9918\u70ba\u5c0f\u5beb\u3002<\/p>\n

x = \"hello world\"\nprint(x.capitalize())<\/code><\/pre>\n
OUTPUT:<\/p>\n
Hello world<\/p>\n
\n
str.count<\/strong>(sub<\/em>[, start<\/em>[, end<\/em>]])<\/p>\n
\u8fd4\u56de\u5b50\u5b57\u4e32 sub<\/em> \u5728 [start<\/em>, end<\/em>] \u7bc4\u570d\u5167\u975e\u91cd\u758a\u51fa\u73fe\u7684\u6b21\u6578\u3002 \u53ef\u9078\u53c3\u6578 start<\/em> \u8207 end<\/em> \u6703\u88ab\u89e3\u8b80\u70ba\u5207\u7247\u6a19\u8a18\u6cd5\u3002<\/p>\n
x = \"hello world\"\nprint(x.count(\"l\"))<\/code><\/pre>\n
OUTPUT:<\/p>\n
3<\/p>\n
\n
str.startswith()  \u53c3\u8003\u4ee5\u4e0b\uff1a<\/strong><\/p>\n
str.endswith<\/strong>(suffix<\/em>[, start<\/em>[, end<\/em>]])<\/p>\n
\u5982\u679c\u5b57\u4e32\u4ee5\u6307\u5b9a\u7684 suffix<\/em> \u7d50\u675f\u8fd4\u56de True\uff0c\u5426\u5247\u8fd4\u56de False\u3002 suffix<\/em> \u4e5f\u53ef\u4ee5\u70ba\u7531\u591a\u500b\u4f9b\u67e5\u627e\u7684\u5c3e\u78bc\u69cb\u6210\u7684\u5143\u7d44\u3002 \u5982\u679c\u6709\u53ef\u9078\u9805 start<\/em>\uff0c\u5c07\u5f9e\u6240\u6307\u5b9a\u4f4d\u7f6e\u958b\u59cb\u6aa2\u67e5\u3002 \u5982\u679c\u6709\u53ef\u9078\u9805 end<\/em>\uff0c\u5c07\u5728\u6240\u6307\u5b9a\u4f4d\u7f6e\u505c\u6b62\u6bd4\u8f03\u3002<\/p>\n
x = \"hello world\"\nprint(x.endswith(\"rld\"))<\/code><\/pre>\n
OUTPUT:<\/p>\n
True<\/p>\n
\n
str.find<\/strong>(sub<\/em>[, start<\/em>[, end<\/em>]])<\/p>\n
\u8fd4\u56de\u5b50\u5b57\u4e32 sub<\/em> \u5728 s[start:end] \u5207\u7247\u5167\u88ab\u627e\u5230\u7684\u6700\u5c0f\u7d22\u5f15\u3002 \u53ef\u9078\u53c3\u6578 start<\/em> \u8207 end<\/em> \u6703\u88ab\u89e3\u8b80\u70ba\u5207\u7247\u6a19\u8a18\u6cd5\u3002 \u5982\u679c sub<\/em> \u672a\u88ab\u627e\u5230\u5247\u8fd4\u56de -1\u3002<\/p>\n
x = \"hello world\"\nprint(x.endswith(\"llo\"))<\/code><\/pre>\n
OUTPUT:<\/p>\n
True<\/p>\n
x = \"hello world\"\nprint(x.endswith(\"lloe\"))<\/code><\/pre>\n
OUTPUT:<\/p>\n
-1<\/p>\n
\n<\/div>\n","protected":false},"excerpt":{"rendered":"
 \ud83e\udd4c Python\u5b78\u7fd2\u7b46\u8a18: String \u5167\u5efa\u51fd\u6578 \u4ee5\u4e0b\u5167\u5bb9\u6458\u81eaPython\u5b98\u65b9\u8aaa\u660e\u6587\u4ef6\uff1a Bui […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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