{"id":77,"date":"2021-06-18T00:07:21","date_gmt":"2021-06-17T16:07:21","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/python\/?p=77"},"modified":"2021-06-18T00:07:21","modified_gmt":"2021-06-17T16:07:21","slug":"python%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/python\/post-77.html","title":{"rendered":"python\u7684\u5b57\u7b26\u4e32"},"content":{"rendered":"\n

python\u4e2d, \u5b57\u7b26\u4e32\u5c31\u662f”\u4e00\u4e32\u5b57\u7b26”, \u662f\u7f16\u7a0b\u8bed\u8a00\u4e2d\u8868\u793a\u6587\u672c\u7684\u6570\u636e\u7c7b\u578b<\/p>\n\n\n\n

\u5728python\u4e2d, \u53ef\u4ee5\u4f7f\u7528\u53cc\u5f15\u53f7””<\/strong>, \u6216\u8005\u5355\u5f15\u53f7”<\/strong>\u5b9a\u4e49\u4e00\u4e2a\u5b57\u7b26\u4e32<\/p>\n\n\n\n

\u867d\u7136\u53ef\u4ee5\u4f7f\u7528\u8f6c\u79fb\u5b57\u7b26, \u4f46\u5f00\u53d1\u4e2d\u66f4\u591a\u7684\u662f\u4f7f\u7528\u5355, \u53cc\u5f15\u53f7\u76f8\u4e92\u5d4c\u5957\u7684\u65b9\u5f0f<\/p>\n\n\n\n

\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15, \u83b7\u53d6\u6bcf\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u4f4d\u7f6e\u7684\u5b57\u7b26, \u7d22\u5f15\u4ece0\u5f00\u59cb, \u6216\u4f7f\u7528for\u904d\u5386, \u6ce8\u610f: python\u4e2d\u7684\u5b57\u7b26\u4e5f\u662f\u5b57\u7b26\u4e32\u7c7b\u578b<\/strong><\/p>\n\n\n\n

\u5e38\u7528\u7684\u65b9\u6cd5<\/h2>\n\n\n\n

\u5b57\u7b26\u4e32\u662f\u5e38\u7528\u7684\u6570\u636e\u7c7b\u578b, \u5b83\u7684\u65b9\u6cd5\u8f83\u591a, \u5305\u542b\u4f46\u4e0d\u9650\u4e8e<\/p>\n\n\n\n

ps:<\/strong> \u5728ipython3\u4e2d, \u5bf9\u67d0\u4e2a\u53d8\u91cf, \u8f93\u5165 \u53d8\u91cf.<\/strong> \u6309\u4e0btab\u5c31\u53ef\u4ee5\u67e5\u770b\u6240\u6709\u65b9\u6cd5<\/p>\n\n\n\n

len(\u5b57\u7b26\u4e32)<\/td>\u7edf\u8ba1\u5b57\u7b26\u4e32\u957f\u5ea6<\/td><\/tr>
\u5b57\u7b26\u4e32.count(\u5b50\u5b57\u7b26\u4e32)<\/td>\u7edf\u8ba1\u5b50\u5b57\u7b26\u4e32\u51fa\u73b0\u6b21\u6570<\/td><\/tr>
\u5b57\u7b26\u4e32.index(\u5b50\u5b57\u7b26\u4e32)<\/td>\u83b7\u53d6\u5b50\u4e32\u7b2c\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5224\u65ad\u7c7b<\/strong><\/p>\n\n\n\n

\u5b57\u7b26\u4e32.isspace()<\/td>\u5224\u65ad\u662f\u5426\u5305\u542b\u7a7a\u683c<\/td><\/tr>
\u5b57\u7b26\u4e32.isalnum()<\/td>\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u5b57\u7b26\u5e76\u4e14\u65c1\u8fb9\u90fd\u662f\u5b57\u7b26\u6216\u5b57\u6bcd<\/td><\/tr>
\u5b57\u7b26\u4e32.isalpha()<\/td>\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u5b57\u7b26\u5e76\u4e14\u65c1\u8fb9\u90fd\u662f\u5b57\u6bcd<\/td><\/tr>
\u5b57\u7b26\u4e32.isdecimal()<\/td>\u5168\u662f\u6570\u5b57, \u5168\u89d2\u6570\u5b57<\/td><\/tr>
\u5b57\u7b26\u4e32.isdigit()<\/td>\u5168\u662f\u6570\u5b57, \u5168\u89d2\u6570\u5b57\u3001\\u00b2<\/td><\/tr>
\u5b57\u7b26\u4e32.isnumerc()<\/td>\u5168\u662f\u6570\u5b57, \u5168\u89d2\u6570\u5b57\u3001\u6c49\u5b57\u6570\u5b57<\/td><\/tr>
\u5b57\u7b26\u4e32.istitle()<\/td>\u662f\u6807\u9898\u5316\u5b57\u7b26\u4e32(\u6bcf\u4e2a\u5355\u8bcd\u9996\u5b57\u6bcd\u5927\u5199)<\/td><\/tr>
\u5b57\u7b26\u4e32.islower()<\/td>\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u5927\u5c0f\u5199\u7684\u5b57\u7b26, \u533a\u5206\u5b57\u7b26\u5747\u5c0f\u5199<\/td><\/tr>
\u5b57\u7b26\u4e32.isupper()<\/td>\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u5927\u5c0f\u5199\u7684\u5b57\u7b26, \u533a\u5206\u5b57\u7b26\u5747\u5927\u5199<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u67e5\u627e\u548c\u66ff\u6362<\/strong><\/p>\n\n\n\n

\u5b57\u7b26\u4e32.startwith(str)<\/td>\u662f\u5426\u4ee5str\u5f00\u5934<\/td><\/tr>
\u5b57\u7b26\u4e32.endwith(str)<\/td>\u662f\u5426\u4ee5str\u7ed3\u5c3e<\/td><\/tr>
\u5b57\u7b26\u4e32.find(str,start=0,end=10)<\/td>\u68c0\u6d4bstr\u662f\u5426\u5728\u5b57\u7b26\u4e32\u6307\u5b9a\u4f4d\u7f6e<\/td><\/tr>
\u5b57\u7b26\u4e32.rfind(str,start=0,end=10)<\/td>\u7c7b\u4f3cfind, \u4f46\u4ece\u53f3\u8fb9\u5f00\u59cb<\/td><\/tr>
\u5b57\u7b26\u4e32.replace(old_str,new_str,num)<\/td>\u6307\u5b9a\u66ff\u6362n\u6b21 old \u4e3a new<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5927\u5c0f\u5199\u8f6c\u6362<\/strong><\/p>\n\n\n\n

\u5b57\u7b26\u4e32.capitalize()<\/td>\u7b2c\u4e00\u4e2a\u5b57\u7b26\u5927\u5199<\/td><\/tr>
\u5b57\u7b26\u4e32.title()<\/td>\u6240\u6709\u5355\u8bcd\u9996\u5b57\u6bcd\u5927\u5199<\/td><\/tr>
\u5b57\u7b26\u4e32.lower()<\/td>\u5168\u90e8\u53d8\u5c0f\u5199<\/td><\/tr>
\u5b57\u7b26\u4e32.upper()<\/td>\u5168\u90e8\u53d8\u5927\u5199<\/td><\/tr>
\u5b57\u7b26\u4e32.swapcase()<\/td>\u5927\u5c0f\u5199\u53cd\u8f6c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u6587\u672c\u5bf9\u9f50<\/strong><\/p>\n\n\n\n

\u5b57\u7b26\u4e32.ljust(width)<\/td>\u5b57\u7b26\u4e32\u5de6\u5bf9\u9f50, \u7a7a\u683c\u586b\u5145width\u5b57\u7b26\u957f\u5ea6<\/td><\/tr>
\u5b57\u7b26\u4e32.rjust(width)<\/td>\u5b57\u7b26\u4e32\u53f3\u5bf9\u9f50, \u7a7a\u683c\u586b\u5145width\u5b57\u7b26\u957f\u5ea6<\/td><\/tr>
\u5b57\u7b26\u4e32.center(width)<\/td>\u5b57\u7b26\u4e32\u4e2d\u95f4\u5bf9\u9f50, \u7a7a\u683c\u586b\u5145width\u5b57\u7b26\u957f\u5ea6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u53bb\u6389\u7a7a\u767d\u5b57\u7b26<\/strong><\/p>\n\n\n\n

\u5b57\u7b26\u4e32.lstrip()<\/td>\u622a\u6389\u5de6\u8fb9\u5f00\u59cb\u7684\u7a7a\u767d\u5b57\u7b26<\/td><\/tr>
\u5b57\u7b26\u4e32.rstrip()<\/td>\u622a\u6389\u53f3\u8fb9\u5f00\u59cb\u7684\u7a7a\u767d\u5b57\u7b26<\/td><\/tr>
\u5b57\u7b26\u4e32.strip()<\/td>\u622a\u6389\u5de6\u53f3\u4e24\u8fb9\u7684\u7a7a\u767d\u5b57\u7b26<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u62c6\u5206\u548c\u62fc\u63a5<\/strong><\/p>\n\n\n\n

\u5b57\u7b26\u4e32.partition(str)<\/td>\u5b57\u7b26\u4e32\u4ee5str\u5206\u62103\u5143\u7d20\u7684\u5143\u7ec4
str\u524d, str, str\u540e<\/td><\/tr>
\u5b57\u7b26\u4e32.rpartion(str)<\/td>\u7c7b\u4f3cpartion,\u4f46\u4ece\u53f3\u8fb9\u5f00\u59cb<\/td><\/tr>
\u5b57\u7b26\u4e32.split(str=””,num)<\/td>\u4ee5str\u5206\u9694\u7b26\u62c6\u5206\u5b57\u7b26\u4e32,
\u5982\u679c\u5b58\u5728num, \u5219\u5206\u6210num+1\u4efd
\u5b57\u7b26\u4e32\u9ed8\u8ba4\u5305\u542b\\r,\\t,\\n<\/td><\/tr>
\u5b57\u7b26\u4e32.splitlines()<\/td>\u6309\u7167\u884c\u4ee5(\\r,\\n,\\r\\n)\u5206\u9694, \u8fd4\u56de\u4e00\u4e2a\u5217\u8868<\/td><\/tr>
\u5b57\u7b26\u4e32.join(seq)<\/td>\u5b57\u7b26\u4e32\u4f5c\u4e3a\u5206\u9694\u7b26,
\u5c06\u5217\u8868seg\u7684\u5143\u7d20\u5408\u5e76\u4e3a\u65b0\u5b57\u7b26\u4e32<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u53d6\u5b50\u4e32<\/h2>\n\n\n\n

python\u7684\u53d6\u5b50\u4e32, \u53c8\u79f0\u4e3a\u5207\u7247, \u6709\u591a\u79cd\u91cd\u8f7d<\/p>\n\n\n\n

\u5b57\u7b26\u4e32[\u8d77\u59cb:\u672b\u5c3e:\u6b65\u957f]<\/code><\/pre>\n\n\n\n
#\u53d6[2,6)\u5b50\u4e32\n\u5b57\u7b26\u4e32[2:6]\n\n#\u53d62\u5f00\u59cb\u5230\u672b\u5c3e\u7684\u5b50\u4e32\n\u5b57\u7b26\u4e32[2:]\n\n\n#\u53d60\u5f00\u59cb\u52306\u7684\u5b50\u4e32\n\u5b57\u7b26\u4e32[:6]\n\n#\u53d6\u5168\u90e8\n\u5b57\u7b26\u4e32[:]\n\n#\u4ece0\u5f00\u59cb\u6bcf\u9694\u4e00\u4e2a\u5b57\u7b26\u53d6\u4e00\u4e2a\n\u5b57\u7b26\u4e32[::2]\n\n#\u4ece1\u5f00\u59cb\u6bcf\u9694\u4e00\u4e2a\u53d6\u4e00\u4e2a\n\u5b57\u7b26\u4e32[1::2]\n\n#\u82e5\u6570\u5b57\u662f\u8d1f\u6570, \u8868\u793a\u4ece\u53f3\u53d6, \u5982\u4ece1\u5230\u672b\u5c3e-1\n\u5b57\u7b26\u4e32[1:-1]\n\n#\u53d6\u6700\u540e2\u4e2a\u5b57\u7b26\n\u5b57\u7b26\u4e32[-2:]\n\n#\u82e5\u6b65\u957f\u662f\u8d1f\u6570, \u8868\u793a\u4ece\u53f3\u5411\u5de6\u53d6, \u4f8b\u5982\u9006\u7f6e\u5b57\u7b26\u4e32\n\u5b57\u7b26\u4e32[::-1]<\/code><\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
python\u4e2d, \u5b57\u7b26\u4e32\u5c31\u662f”\u4e00\u4e32\u5b57\u7b26”, \u662f\u7f16\u7a0b\u8bed\u8a00\u4e2d\u8868\u793a\u6587\u672c\u7684\u6570\u636e\u7c7b\u578b \u5728pyth… \u7ee7\u7eed\u9605\u8bfb python\u7684\u5b57\u7b26\u4e32<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/77"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/comments?post=77"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/77\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/media?parent=77"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/categories?post=77"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/tags?post=77"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}