{"rsdb":{"rid":"314510","subhead":"","postdate":"0","aid":"227669","fid":"77","uid":"1","topic":"1","content":"
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\n 
s = "<\/span>abcaDa a<\/span>"<\/span>\r\ns2 <\/span>= "<\/span>123a abc ABCSAa s <\/span>"<\/span>\r\ns3 <\/span>= "<\/span>\\tas \\t\\tb123<\/span>"<\/span>\r\ns4 <\/span>= '<\/span>    &abc123 c ##    <\/span>'<\/span><\/pre> \n <\/div> \n 
1.str.capitalize()<\/strong><\/span><\/p> \n 
\u5c06\u539f\u5b57\u7b26\u4e32\u5185\u7684\u9996\u5b57\u6bcd<\/strong><\/span>\u8f6c\u6210\u5927\u5199<\/strong><\/span>,\u5176\u4ed6\u90e8\u5206\u5c0f\u5199,\u518d\u8fd4\u56de\u65b0\u5b57\u7b26\u4e32<\/span><\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s.capitalize() = {function}<\/span>"<\/span>.format(function = s.capitalize())) <\/pre> \n <\/div> \n 
Output\uff1a<\/span><\/p> \n 
 \n  
s.capitalize() = Abcada a<\/pre> \n <\/div> \n 
2.str.upper()<\/strong><\/span><\/p> \n 
\u5c06\u539f\u5b57\u7b26\u4e32\u7684\u5b57\u6bcd\u8f6c\u4e3a\u5927\u5199<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s.upper() = {function}<\/span>"<\/span>.format(function = s.upper()))<\/pre> \n <\/div> \n 
Output:<\/span><\/p> \n 
 \n  
s.upper() = ABCADA A<\/pre> \n <\/div> \n 
3.str.lower()<\/span><\/strong><\/p> \n 
\u5c06\u539f\u5b57\u7b26\u4e32\u7684\u5b57\u6bcd\u8f6c\u4e3a\u5c0f\u5199<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s.lower() = {function}<\/span>"<\/span>.format(function = s.lower()))<\/pre> \n <\/div> \n 
Output:<\/span><\/p> \n 
 \n  
s.lower() = abcada a<\/pre> \n <\/div> \n 
4.str.swapcase()<\/strong><\/span><\/p> \n 
\u5c06\u539f\u5b57\u7b26\u4e32\u5185\u7684\u5927\u5199\u5c0f\u5199\u53cd\u8f6c<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s.swapcase() = {function}<\/span>"<\/span>.format(function = s.swapcase()))<\/pre> \n <\/div> \n 
Output:<\/span><\/p> \n 
 \n  
s.swapcase() = ABCAdA A<\/pre> \n <\/div> \n 
5.str.title()<\/span><\/strong><\/p> \n 
\u539f\u5b57\u7b26\u4e32\u5185\u5982\u679c\u6709\u7279\u6b8a\u5b57\u7b26(\u5305\u62ec\u6570\u5b57)<\/strong><\/span>\u8fde\u63a5\u5b57\u6bcd,\u5219\u5c06\u7279\u6b8a\u5b57\u7b26\u540e\u7684\u9996\u4e2a\u82f1\u6587\u5b57\u6bcd\u8f6c\u5316\u4e3a\u5927\u5199\u5f62\u6001,\u5e76\u8fd4\u56de\u65b0\u5b57\u7b26\u4e32<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s2.title() = {function}<\/span>"<\/span>.format(function = s2.title()))<\/pre> \n <\/div> \n 
Output:<\/span><\/p> \n 
 \n  
s2.title() = 123A Abc Abcsaa S<\/pre> \n <\/div> \n 
6.str.center()<\/strong><\/span><\/p> \n 
str.center(\u5bbd\u5ea6,\u586b\u5145\u5b57\u7b26) \u5c06\u5b57\u7b26\u4e32\u4ee5\u5c45\u4e2d<\/span><\/strong>\u7684\u683c\u5f0f\u8fd4\u56de,\u82e5\u5bbd\u5ea6\u503c\u6bd4len(s)\u5c0f\u5219\u8fd4\u56de\u539f\u5b57\u7b26\u4e32,\u586b\u5145\u4ee5\u4ece\u5de6\u5230\u53f3\u4e3a\u89c4\u5219,\u586b\u5145\u5b57\u7b26\u7684\u9ed8\u8ba4\u503c\u4e3a\u7a7a\u683c,\u503c\u53ef\u4ee5\u81ea\u5df1\u66f4\u6539<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s2.center() = {function}<\/span>"<\/span>.format(function = s2.center(19,'<\/span>&<\/span>'<\/span>)))\r\n<\/span>print<\/span>("<\/span>s2.center() = {function}<\/span>"<\/span>.format(function = s2.center(20,'<\/span>&<\/span>'<\/span>)))<\/pre> \n <\/div> \n 
Output:<\/p> \n 
 \n  
#<\/span>s2 = 123a abc ABCSAa s<\/span>\r\ns2.center() = &123a abc ABCSAa s \r\ns2.center() <\/span>= &123a abc ABCSAa s &<\/pre> \n <\/div> \n 
7.str.expandtabs()<\/strong><\/span><\/p> \n 
str.expandtabs(tabsize = 8) \u5c06\u539f\u5b57\u7b26\u4e32\u4e2d\\t\u4ee5\u524d<\/strong><\/span>\u7684\u5b57\u7b26\u8865\u6ee18\u4f4d(\u9ed8\u8ba4),tabsize\u7684\u503c\u4ece0-7\u53738\u4f4d,\u57280-7\u4e2d\u4efb\u610f\u53d6\u503c\u5219\u9ed8\u8ba4tabsize = 8,\u6b64\u540e<\/span><\/p> \n 
\u5f80\u4e0a+1\uff0c\u5c31\u76f8\u5f53\u4e8e\u589e\u52a0\u4e00\u4e2a\u7a7a\u683c<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s3.expandtabs ={function}<\/span>"<\/span>.format(function = s3.expandtabs()))\r\n<\/span>print<\/span>("<\/span>s3.expandtabs ={function}<\/span>"<\/span>.format(function = s3.expandtabs(0)))\r\n<\/span>print<\/span>("<\/span>s3.expandtabs ={function}<\/span>"<\/span>.format(function = s3.expandtabs(5)))\r\n<\/span>print<\/span>("<\/span>s3.expandtabs ={function}<\/span>"<\/span>.format(function = s3.expandtabs(8)))\r\n<\/span>print<\/span>("<\/span>s3.expandtabs ={function}<\/span>"<\/span>.format(function = s3.expandtabs(9)))<\/pre> \n <\/div> \n 
Output:<\/p> \n 
 \n  
#<\/span>s3 = "\\tas \\t\\tb123"<\/span>\r\ns3.expandtabs =        as              b123\r\ns3.expandtabs <\/span>=as b123\r\ns3.expandtabs <\/span>=     as        b123\r\ns3.expandtabs <\/span>=        as              b123\r\ns3.expandtabs <\/span>=         as                b123<\/pre> \n <\/div> \n 
8.String_len = len(str)<\/strong><\/span><\/p> \n 
\u516c\u5171\u65b9\u6cd5,\u8ba1\u7b97\u5b57\u7b26\u4e32\u7684\u957f\u5ea6<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s2_length = {0}<\/span>"<\/span>.format(len(s2))) <\/pre> \n <\/div> \n 
Output:<\/p> \n 
 \n  
s2_length = 18<\/pre> \n <\/div> \n 
9.str.startswith()<\/strong><\/span><\/p> \n 
str.startswith(substr,strbeg,strend) \u5224\u65ad\u539f\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u5b50\u5b57\u7b26\u4e32\u5f00\u5934 \u53ef\u4ee5\u7528\u5207\u7247\u7684\u5f62\u5f0f\u8fdb\u884c\u5224\u65ad(\u4ee5\u987e\u5934\u4e0d\u987e\u5c3e\u4e3a\u539f\u5219),\u8fd9\u91cc\u7684strend\u8981<\/span>\u6bd4strbeg\u5927\u5426\u5219\u4f20\u56defalse \u51fd\u6570\u7ed3\u679c\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c<\/span><\/strong><\/span><\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s.startswith() = {function}<\/span>"<\/span>.format(function = s.startswith('<\/span>ab<\/span>'<\/span>)))\r\n<\/span>print<\/span>("<\/span>s.startswith() = {function}<\/span>"<\/span>.format(function = s.startswith('<\/span>D<\/span>'<\/span>,2)))\r\n<\/span>print<\/span>("<\/span>s.startswith() = {function}<\/span>"<\/span>.format(function = s.startswith('<\/span>c<\/span>'<\/span>,2,5)))\r\n<\/span>print<\/span>("<\/span>s.startswith() = {function}<\/span>"<\/span>.format(function = s.startswith('<\/span>c<\/span>'<\/span>,2,100)))<\/pre> \n <\/div> \n 
Output:<\/p> \n 
 \n  
#<\/span>s = abcaDa a<\/span>\r\ns.startswith() = True\r\ns.startswith() <\/span>= False\r\ns.startswith() <\/span>= True\r\ns.startswith() <\/span>= True<\/pre> \n <\/div> \n 
10.endswith()<\/strong><\/span><\/p> \n 
str.endswith(substr,strbeg,strend) \u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u5b50\u5b57\u7b26\u4e32\u7ed3\u5c3e \u7ed3\u679c\u8fd4\u56de\u5e03\u5c14\u503c,\u8fd9\u91cc\u7684strend\u8981\u6bd4strbeg\u5c0f\u5426\u5219\u4f20\u56defalse \u548cstartswith()\u4e00\u6837\u8981\u4ece\u5de6\u5230\u53f3\u4e3a\u539f\u5219<\/span><\/p> \n 
 \n  
print<\/span>("<\/span>s.endswith() = {function}<\/span>"<\/span>.format(function = s.endswith('<\/span>Da a<\/span>'<\/span>)))\r\n<\/span>print<\/span>("<\/span>s.endswith() = {function}<\/span>"<\/span>.format(function = s.endswith('<\/span>a<\/span>'<\/span>,-1)))\r\n<\/span>print<\/span>("<\/span>s.endswith() = {function}<\/span>"<\/span>.format(function = s.endswith('<\/span>Da a<\/span>'<\/span>,-4)))\r\n<\/span>print<\/span>("<\/span>s.endswith() = {function}<\/span>"<\/span>.format(function = s.endswith('<\/span>c<\/span>'<\/span>,-8,-5)))\r\n<\/span>print<\/span>(&quo","orderid":"0","title":"Python String\u51fd\u6570(\u4e00)","smalltitle":"","mid":"0","fname":"Python","special_id":"0","bak_id":"0","info":"0","hits":"133","pages":"3","comments":"0","posttime":"2019-07-16 00:10:59","list":"1563207059","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"Python<\/A> String<\/A> \u51fd\u6570<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"47.106.78.186","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"Python String\u51fd\u6570","lastview":"1712777135","digg_num":"0","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}