{"id":177924,"date":"2022-04-21T22:11:58","date_gmt":"2022-04-21T14:11:58","guid":{"rendered":"http:\/\/www.idc.net\/help\/177924\/"},"modified":"2022-04-21T22:11:58","modified_gmt":"2022-04-21T14:11:58","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91python%e6%95%99%e7%a8%8b%ef%bc%9apython%e4%b8%adsplit%e5%88%86%e5%89%b2%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/177924\/","title":{"rendered":"\u540e\u6d6a\u4e91Python\u6559\u7a0b\uff1aPython\u4e2dsplit\u5206\u5272\u5b57\u7b26\u4e32"},"content":{"rendered":"

<\/p>\n

Python \u4e2d\uff0c\u9664\u4e86\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5185\u5efa\u51fd\u6570\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u76f8\u5173\u4fe1\u606f\u5916\uff08\u4f8b\u5982 len() \u51fd\u6570\u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6\uff09\uff0c\u5b57\u7b26\u4e32\u7c7b\u578b\u672c\u8eab\u4e5f\u62e5\u6709\u4e00\u4e9b\u65b9\u6cd5\u4f9b\u6211\u4eec\u4f7f\u7528\u3002<\/p>\n

\u6ce8\u610f\uff0c\u8fd9\u91cc\u6240\u8bf4\u7684\u65b9\u6cd5\uff0c\u6307\u7684\u662f\u5b57\u7b26\u4e32\u7c7b\u578b str \u672c\u8eab\u6240\u63d0\u4f9b\u7684\uff0c\u7531\u4e8e\u6d89\u53ca\u5230\u7c7b\u548c\u5bf9\u8c61\u7684\u77e5\u8bc6\uff0c\u521d\u5b66\u8005\u4e0d\u5fc5\u6df1\u7a76\uff0c\u53ea\u9700\u8981\u77e5\u9053\u65b9\u6cd5\u7684\u5177\u4f53\u7528\u6cd5\u5373\u53ef\u3002<\/p>\n

\u4ece\u672c\u8282\u5f00\u59cb\uff0c\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u5b57\u7b26\u4e32\u7c7b\u578b\u65b9\u6cd5\uff0c\u672c\u8282\u5148\u4ecb\u7ecd\u5206\u5272\u5b57\u7b26\u4e32\u7684 split() \u65b9\u6cd5\u3002<\/p>\n

split() \u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u6309\u7167\u6307\u5b9a\u7684\u5206\u9694\u7b26\u5207\u5206\u6210\u591a\u4e2a\u5b50\u4e32\uff0c\u8fd9\u4e9b\u5b50\u4e32\u4f1a\u88ab\u4fdd\u5b58\u5230\u5217\u8868\u4e2d\uff08\u4e0d\u5305\u542b\u5206\u9694\u7b26\uff09\uff0c\u4f5c\u4e3a\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u53cd\u9988\u56de\u6765\u3002\u8be5\u65b9\u6cd5\u7684\u57fa\u672c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

str.split(sep,maxsplit)<\/p>\n

\u6b64\u65b9\u6cd5\u4e2d\u5404\u90e8\u5206\u53c2\u6570\u7684\u542b\u4e49\u5206\u522b\u662f\uff1a<\/p>\n

str\uff1a\u8868\u793a\u8981\u8fdb\u884c\u5206\u5272\u7684\u5b57\u7b26\u4e32\uff1b<\/p>\n

sep\uff1a\u7528\u4e8e\u6307\u5b9a\u5206\u9694\u7b26\uff0c\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u5b57\u7b26\u3002\u6b64\u53c2\u6570\u9ed8\u8ba4\u4e3a None\uff0c\u8868\u793a\u6240\u6709\u7a7a\u5b57\u7b26\uff0c\u5305\u62ec\u7a7a\u683c\u3001\u6362\u884c\u7b26\u201c\\n\u201d\u3001\u5236\u8868\u7b26\u201c\\t\u201d\u7b49\u3002<\/p>\n

maxsplit\uff1a\u53ef\u9009\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u5206\u5272\u7684\u6b21\u6570\uff0c\u6700\u540e\u5217\u8868\u4e2d\u5b50\u4e32\u7684\u4e2a\u6570\u6700\u591a\u4e3a maxsplit+1\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u6216\u8005\u6307\u5b9a\u4e3a -1\uff0c\u5219\u8868\u793a\u5206\u5272\u6b21\u6570\u6ca1\u6709\u9650\u5236\u3002<\/p>\n

\u5728 split \u65b9\u6cd5\u4e2d\uff0c\u5982\u679c\u4e0d\u6307\u5b9a sep \u53c2\u6570\uff0c\u90a3\u4e48\u4e5f\u4e0d\u80fd\u6307\u5b9a maxsplit \u53c2\u6570\u3002<\/p>\n

\u540c\u5185\u5efa\u51fd\u6570\uff08\u5982 len\uff09\u7684\u4f7f\u7528\u65b9\u5f0f\u4e0d\u540c\uff0c\u5b57\u7b26\u4e32\u53d8\u91cf\u6240\u62e5\u6709\u7684\u65b9\u6cd5\uff0c\u53ea\u80fd\u91c7\u7528\u201c\u5b57\u7b26\u4e32.\u65b9\u6cd5\u540d()\u201d\u7684\u65b9\u5f0f\u8c03\u7528\u3002\u8fd9\u91cc\u4e0d\u7528\u7ea0\u7ed3\u4e3a\u4ec0\u4e48\uff0c\u5b66\u5b8c\u7c7b\u548c\u5bf9\u8c61\u4e4b\u540e\uff0c\u81ea\u7136\u4f1a\u660e\u767d\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5b9a\u4e49\u4e00\u4e2a\u4fdd\u5b58 C\u8bed\u8a00\u4e2d\u6587\u7f51\u7f51\u5740\u7684\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u7528 split() \u65b9\u6cd5\u6839\u636e\u4e0d\u540c\u7684\u5206\u9694\u7b26\u8fdb\u884c\u5206\u9694\uff0c\u6267\u884c\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n

>>> str = \"C\u8bed\u8a00\u4e2d\u6587\u7f51 >>> c.biancheng.net\"\n>>> str\n'C\u8bed\u8a00\u4e2d\u6587\u7f51 >>> c.biancheng.net'\n>>> list1 = str.split() #\u91c7\u7528\u9ed8\u8ba4\u5206\u9694\u7b26\u8fdb\u884c\u5206\u5272\n>>> list1\n['C\u8bed\u8a00\u4e2d\u6587\u7f51', '>>>', 'c.biancheng.net']\n>>> list2 = str.split('>>>') #\u91c7\u7528\u591a\u4e2a\u5b57\u7b26\u8fdb\u884c\u5206\u5272\n>>> list2\n['C\u8bed\u8a00\u4e2d\u6587\u7f51 ', ' c.biancheng.net']\n>>> list3 = str.split('.') #\u91c7\u7528 . \u53f7\u8fdb\u884c\u5206\u5272\n>>> list3\n['C\u8bed\u8a00\u4e2d\u6587\u7f51 >>> c', 'biancheng', 'net']\n>>> list4 = str.split(' ',4) #\u91c7\u7528\u7a7a\u683c\u8fdb\u884c\u5206\u5272\uff0c\u5e76\u89c4\u5b9a\u6700\u591a\u53ea\u80fd\u5206\u5272\u6210 4 \u4e2a\u5b50\u4e32\n>>> list4\n['C\u8bed\u8a00\u4e2d\u6587\u7f51', '>>>', 'c.biancheng.net']\n>>> list5 = str.split('>') #\u91c7\u7528 > \u5b57\u7b26\u8fdb\u884c\u5206\u5272\n>>> list5\n['C\u8bed\u8a00\u4e2d\u6587\u7f51 ', '', '', ' c.biancheng.net']\n>>><\/pre>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u672a\u6307\u5b9a sep \u53c2\u6570\u65f6\uff0csplit() \u65b9\u6cd5\u9ed8\u8ba4\u91c7\u7528\u7a7a\u5b57\u7b26\u8fdb\u884c\u5206\u5272\uff0c\u4f46\u5f53\u5b57\u7b26\u4e32\u4e2d\u6709\u8fde\u7eed\u7684\u7a7a\u683c\u6216\u5176\u4ed6\u7a7a\u5b57\u7b26\u65f6\uff0c\u90fd\u4f1a\u88ab\u89c6\u4e3a\u4e00\u4e2a\u5206\u9694\u7b26\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u5272\uff0c\u4f8b\u5982\uff1a<\/p>\n
>>> str = \"C\u8bed\u8a00\u4e2d\u6587\u7f51   >>>   c.biancheng.net\"  #\u5305\u542b 3 \u4e2a\u8fde\u7eed\u7684\u7a7a\u683c\n>>> list6 = str.split()\n>>> list6\n['C\u8bed\u8a00\u4e2d\u6587\u7f51', '>>>', 'c.biancheng.net']\n>>><\/pre>\n","protected":false},"excerpt":{"rendered":"
Python \u4e2d\uff0c\u9664\u4e86\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5185\u5efa\u51fd\u6570\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u76f8\u5173\u4fe1\u606f\u5916\uff08\u4f8b\u5982 len() \u51fd\u6570\u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6\uff09\uff0c\u5b57\u7b26 […]<\/p>\n","protected":false},"author":1,"featured_media":177925,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[182397],"tags":[],"class_list":["post-177924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/177924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=177924"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/177924\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media\/177925"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=177924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=177924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=177924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}