{"id":86284,"date":"2026-07-28T11:56:46","date_gmt":"2026-07-28T03:56:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/86284.html"},"modified":"2026-07-28T11:56:46","modified_gmt":"2026-07-28T03:56:46","slug":"python%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%96%b9%e6%b3%95%e5%a4%a7%e5%90%88%e9%9b%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/86284.html","title":{"rendered":"python\u5b57\u7b26\u4e32\u65b9\u6cd5\u5927\u5408\u96c6"},"content":{"rendered":"

\u6700\u8fd1\u6211\u5b66\u4e60\u4e86bilibili\u4e0a\u5c0f\u7532\u9c7c\u7684\u300a\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60python\u300b\u4ee5\u53ca\u9605\u8bfb\u4e86\u4e66\u7c4d\u300apython\u7f16\u7a0b\u2014\u2014\u4ece\u5165\u95e8\u5230\u5b9e\u8df5\u300b\u5b66\u4e60\u5230\u4e86\u5b57\u7b26\u4e32\u7684\u4e00\u4e9b\u65b9\u6cd5，\u4f46\u8fd9\u4e9b\u65b9\u6cd5\u592a\u591a\u4e5f\u592a\u8fc7\u4e8e\u5197\u6742，\u6211\u4e00\u65f6\u534a\u4f1a\u8bb0\u4e0d\u4e86\u8fd9\u4e48\u591a，\u4e5f\u4e0d\u80fd\u9686\u56de\u8d2f\u901a\u7684\u4f7f\u7528，\u4e8e\u662f\u6253\u7b97\u7528\u8be5\u6587\u7ae0\u603b\u7ed3\u4e00\u4e0b\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n

\u76ee\u5f55<\/p>\n

\u4e00\u3001python\u5b57\u7b26\u4e32\u7684\u5927\u5c0f\u5199\u8f6c\u6362<\/p>\n

\u4e8c\u3001\u53bb\u9664python\u5b57\u7b26\u4e32\u7684\u7a7a\u767d\/\u6307\u5b9a\u5b57\u7b26<\/p>\n

\u4e09\u3001python\u5b57\u7b26\u4e32\u7684\u5bf9\u9f50\u548c\u8865\u5145<\/p>\n

\u56db\u3001python\u4e2d\u67e5\u627e\u548c\u8ba1\u6570\u7684\u65b9\u6cd5<\/p>\n

\n

\u4e00\u3001python\u5b57\u7b26\u4e32\u7684\u5927\u5c0f\u5199\u8f6c\u6362<\/h3>\n\n\u5e8f\u53f7\u65b9\u6cd5\u4f5c\u7528\u793a\u4f8b<\/tr>\n\n\n\n\n\n\n\n
\u2460<\/td>\nx.upper()<\/td>\n\n

\u5c06\u6240\u6709\u5b57\u6bcd\u6362\u6210\u5927\u5199<\/p>\n<\/td>\n

 x="Hello Python"
\nprint(x.upper())
\n#HELLO PYTHON <\/td>\n<\/tr>\n
\u2461<\/td>\nx.lower()<\/td>\n\u5c06\u6240\u6709\u5b57\u6bcd\u5168\u90e8\u6362\u6210\u5c0f\u5199（\u517c\u5bb9\u591a\u79cd\u8bed\u8a00）<\/td>\n x="Hello Python"
\nprint(x.lower())
\n#hello python <\/td>\n<\/tr>\n
\u2462<\/td>\nx.capitalize()<\/td>\n\u53ea\u6709\u6574\u53e5\u8bdd\u7684\u9996\u5199\u5b57\u6bcd\u5927\u5199，\u5176\u4f59\u5b57\u6bcd\u5168\u90e8\u6362\u6210\u5c0f\u5199<\/td>\n x="Hello Python"
\nprint(x.capitalize())
\n#Hello python <\/td>\n<\/tr>\n
\u2463<\/td>\nx.title()<\/td>\n\u6bcf\u4e2a\u5355\u8bcd\u9996\u5b57\u6bcd\u5927\u5199<\/td>\n x="Hello Python"
\nprint(x.title())
\n#Hello Python <\/td>\n<\/tr>\n
\u2464<\/td>\nx.swapcase()<\/td>\n\u6240\u6709\u5b57\u6bcd\u7684\u5927\u5c0f\u5199\u4e92\u6362<\/td>\n x="Hello Python"
\nprint(x.swapcase())
\n#hELLO pYTHON <\/td>\n<\/tr>\n
\u2465<\/td>\nx.casefold()<\/td>\n\u6240\u6709\u5b57\u6bcd\u5168\u90e8\u6362\u6210\u5c0f\u5199（\u53ea\u517c\u5bb9\u82f1\u6587\u5b57\u6bcd）<\/td>\n x="Hello Python"
\nprint(x.casefold())
\n#hello python <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e8c\u3001\u53bb\u9664python\u5b57\u7b26\u4e32\u7684\u7a7a\u767d\/\u6307\u5b9a\u5b57\u7b26<\/h3>\n\n\n\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n\u65b9\u6cd5<\/td>\n\u4f5c\u7528<\/td>\n\u793a\u4f8b<\/td>\n\u8bef\u533a<\/td>\n<\/tr>\n
\u2460<\/td>\nx.strip(chars)<\/td>\n\u53bb\u9664\u5b57\u7b26\u4e32\u5de6\u53f3\u4e24\u8fb9\u7684\u7a7a\u767d\u5b57\u7b26（\u7a7a\u683c，\\\\n，\\\\t，\\\\r\u7b49），\u53ef\u4ee5\u6307\u5b9a\u67d0\u4e2a\u5b57\u7b26<\/td>\n x=" abc "
\nprint(x.strip())
\n#"abc"
\nx="123abc321"
\nprint(x.strip("123"))
\n#"abc" <\/td>\n		strip("123")\u4e0d\u53ea\u662f\u5220\u9664\u5b8c\u6574\u5b57\u7b26\u4e32\u201c123\u201d，\u800c\u662f\u9010\u4e2a\u5b57\u7b26\u4e32\u5224\u65ad\u53ea\u8981\u5b57\u7b26\u4e32\u7b26\u5408\u20181\u2019，\u20182\u2019，\u20183\u2019\u5c31\u5c06\u5176\u5220\u6389<\/td>\n<\/tr>\n
\u2461<\/td>\nx.lstrip(chars)<\/td>\n\u53bb\u9664\u5b57\u7b26\u4e32\u5de6\u4fa7\u7684\u7a7a\u767d\u5b57\u7b26，\u53ef\u4ee5\u6307\u5b9a\u67d0\u4e2a\u5b57\u7b26<\/td>\n x=" abc "
\nprint(x.lstrip())
\n#"abc "
\nx="123abc321"
\nprint(x.lstrip("123"))
\n#"abc321" <\/p>\n<\/td>\n		\u540c\u4e0a<\/td>\n<\/tr>\n
\u2462<\/td>\nx.rstrip(chars)<\/td>\n\u53bb\u9664\u5b57\u7b26\u4e32\u53f3\u4fa7\u7684\u7a7a\u767d\u5b57\u7b26，\u53ef\u4ee5\u6307\u5b9a\u67d0\u4e2a\u5b57\u7b26<\/td>\n x=" abc "
\nprint(x.rstrip())
\n#" abc"
\nx="123abc321"
\nprint(x.rstrip("123"))
\n#"123abc" <\/td>\n		\u540c\u4e0a<\/td>\n<\/tr>\n
\u2463<\/td>\nx.removeprefix(prefix)<\/td>\n\u53bb\u9664\u5f00\u5934\u56fa\u5b9a\u5b57\u7b26\u4e32<\/td>\n x="123abc321"
\nprint(x.removefix("123"))
\n#"abc321" <\/td>\n		\n

\u62ec\u53f7\u5185\u7684\u5185\u5bb9\u4e00\u5b9a\u8981\u548c\u8981\u5220\u9664\u7684\u5185\u5bb9\u4e00\u81f4（\u987a\u5e8f，\u7a7a\u683c\u7b49\u90fd\u8981\u4e00\u81f4）<\/p>\n

python3.9+\u65b0\u589e\u65b9\u6cd5<\/p>\n<\/td>\n<\/tr>\n

\u2464<\/td>\nx.removesuffix(suffix)<\/td>\n\u53bb\u9664\u7ed3\u5c3e\u56fa\u5b9a\u5b57\u7b26\u4e32<\/td>\n x="123abc321"
\nprint(x.removesuffix("321"))
\n#"123abc" <\/td>\n		\n

\u540c\u4e0a<\/p>\n

python3.9+\u65b0\u589e\u65b9\u6cd5<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e09\u3001python\u5b57\u7b26\u4e32\u7684\u5bf9\u9f50\u548c\u8865\u5145<\/h3>\n\n\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n\u65b9\u6cd5<\/td>\n\u4f5c\u7528<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
\u2460<\/td>\nx.center(width,fillchar)<\/td>\n\u5c45\u4e2d\u5bf9\u9f50，\u603b\u5bbd\u5ea6\u4e3awidth，\u7528\u6307\u5b9a\u5b57\u7b26fillchar\u586b\u5145\u7a7a\u683c<\/td>\n x="123"
\nprint(x.center(11,"*"))
\n#"****123****" <\/td>\n<\/tr>\n
\u2461<\/td>\nx.ljust(width,fillchar)<\/td>\n\u5de6\u5bf9\u9f50<\/td>\n x="123"
\nprint(x.ljust(6,"-"))
\n#"123—"\n <\/td>\n<\/tr>\n
\u2462<\/td>\nx.rjust(width,fillchar)<\/td>\n\u53f3\u5bf9\u9f50<\/td>\n x="123"
\nprint(x.rjust(6,"&"))
\n#"&&&123" <\/td>\n<\/tr>\n
\u2463<\/td>\nx.zfill(width)<\/td>\n\u53f3\u4fa7\u88650（\u4e13\u95e8\u7528\u4e8e\u6570\u5b57\u5b57\u7b26\u4e32）<\/td>\n x="123"
\nprint(x.zfill(6))
\n#"000123" <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u56db\u3001python\u4e2d\u67e5\u627e\u548c\u8ba1\u6570\u7684\u65b9\u6cd5<\/h3>\n\n\n\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n\u65b9\u6cd5<\/td>\n\u4f5c\u7528<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
\u2460<\/td>\nx.find(sub,start,end)<\/td>\n\n

\u4ece\u5de6\u5f80\u53f3\u627e<\/p>\n

\u627e\u5230，\u8fd4\u56de\u7b2c\u4e00\u5339\u914d\u9879\u7684\u7d22\u5f15\u503c<\/p>\n

\u627e\u4e0d\u5230，\u8fd4\u56de-1，\u4e0d\u4f1a\u62a5\u9519<\/p>\n

-sub\u8981\u67e5\u627e\u7684\u5b57\u7b26\u4e32<\/p>\n

-start\u3001end\u67e5\u627e\u7684\u8303\u56f4[\u5de6\u95ed，\u53f3\u5f00）<\/p>\n<\/td>\n

 x="hello world"
\nprint(x.find("l",2,10))
\n#3
\nx="hello world"
\nprint(x.find("a",2,10))
\n#-1 <\/td>\n<\/tr>\n
\u2461<\/td>\nx.rfind(sub,star,end)<\/td>\n\u4ece\u53f3\u5f80\u5de6\u627e<\/td>\n x="hello world"
\nprint(x.rfind("l",2,10))
\n#9
\nx="hello world"
\nprint(x.rfind("a",2,10))
\n#-1 <\/td>\n<\/tr>\n
\u2462<\/td>\nx.index(sub,star,end)<\/td>\n\u529f\u80fd\u548cfind\u57fa\u672c\u4e00\u81f4，\u53ea\u662f\u627e\u4e0d\u5230\u5b57\u7b26\u4e32\u4f1a\u62a5\u9519<\/td>\n x="hello world"
\nprint(x.index("l",2,10))
\n#3
\nx="hello world"
\nprint(x.index("a",2,10))
\n#\u62a5\u9519 <\/td>\n<\/tr>\n
\u2463<\/td>\nx.rindex(sub,star,end)<\/td>\n\u529f\u80fd\u548crfind\u57fa\u672c\u4e00\u81f4，\u53ea\u662f\u627e\u4e0d\u5230\u5b57\u7b26\u4e32\u4f1a\u62a5\u9519<\/td>\n x="hello world"
\nprint(x.rindex("l",2,10))
\n#9
\nx="hello world"
\nprint(x.rindex("a",2,10))
\n#\u62a5\u9519 <\/td>\n<\/tr>\n
\u2464<\/td>\nx.count(sub,star,end)<\/td>\n\u67d0\u5b57\u7b26\u4e32\u51fa\u73b0\u7684\u6b21\u6570，\u6ca1\u6709\u5c31\u8fd4\u56de0，\u4e0d\u4f1a\u62a5\u9519<\/td>\n x="hello,world"
\nprint(x.count("l",0,len(x)))
\n#3
\nx="hello world"
\nprint(x.count("a"))
\n#0 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e94\u3001python\u7684\u5b57\u7b26\u4e32\u66ff\u6362<\/h3>\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n\u65b9\u6cd5<\/td>\n\u4f5c\u7528<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
\u2460<\/td>\nx.replace(old,new,count)<\/td>\n\n

\u7528\u65b0\u7684\u5b57\u7b26\u4e32\u4ee3\u66ff\u65e7\u7684\u5b57\u7b26\u4e32<\/p>\n

-old\u8981\u88ab\u66ff\u4ee3\u7684\u65e7\u5b57\u7b26\u4e32<\/p>\n

-new\u7528\u6765\u66ff\u4ee3\u7684\u65b0\u5b57\u7b26\u4e32<\/p>\n

-count\u66ff\u6362\u6b21\u6570，\u4e00\u822c\u9ed8\u8ba4\u4e3a-1，\u4ee3\u8868\u5168\u90e8\u66ff\u6362<\/p>\n<\/td>\n

 x="aa bb cc aa"
\nprint(x.replace("aa","dd"))
\n#"dd bb cc dd"
\nx="aa bb cc aa"
\nprint(x.replace("aa","dd",1))
\n#"dd bb cc aa" <\/td>\n<\/tr>\n
\u2461<\/td>\nx.expandtabs(tabsize)<\/td>\n\n

\u5c06\\\\t\u6362\u6210\u56fa\u5b9a\u7684\u7a7a\u683c(\u7a7a\u683c\u6570=\u6307\u5b9a\u7a7a\u683c\u6570-\\\\t\u524d\u9762\u7684\u5b57\u7b26\u6570)<\/p>\n

-tabsize\u7684\u9ed8\u8ba4\u503c\u4e3a8<\/p>\n<\/td>\n

 x="hello\\\\tpython"
\nprint(x.expandtabs())
\n#"hello python"
\nx="hello\\\\tpython"
\nprint(x.expandtabs(6))
\n#"hello python" <\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u516d\u3001python\u5b57\u7b26\u4e32\u7684\u5206\u5272\u4e0e\u5408\u5e76<\/h3>\n\n\n\n\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n\u65b9\u6cd5<\/td>\n\u4f5c\u7528<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
\u2460<\/td>\nx.split(sep,maxsplit)<\/td>\n\n

\u628a\u5b57\u7b26\u4e32\u5206\u5272\u5e76\u5f62\u6210\u5217\u8868<\/p>\n

-sep\u5206\u9694\u7b26，\u9ed8\u8ba4sep=None\u5c31\u662f\u5206\u5272\u6240\u6709\u7684\u7a7a\u767d（\u7a7a\u683c，\\\\t,\\\\n）<\/p>\n

-maxsplit\u6307\u5206\u5272\u6b21\u6570，\u9ed8\u8ba4\u503c\u4e3a-1，\u4ee3\u8868\u5168\u90e8\u5206\u5272，\u8fde\u7eed\u7684\u7a7a\u767d\u7b97\u4e00\u4e2a，\u53ea\u5206\u5272\u4e00\u6b21<\/p>\n<\/td>\n

 x="a-b-c-d"
\nprint(x.split("-"))
\n#['a','b','c','d']
\nx="a-b-c-d"
\nprint(x.split("-",2))
\n#['a','b','c-d'] <\/td>\n<\/tr>\n
\u2461<\/td>\nx.rsplit(sep,maxsplit)<\/td>\n\u4ece\u53f3\u4fa7\u5f00\u59cb\u5206\u5272\u5b57\u7b26\u4e32<\/td>\n x="a-b-c-d"
\nprint(x.rsplit("-"))
\n#['a','b','c','d']
\nx="a-b-c-d"
\nprint(x.rsplit("-",2))
\n#['a-b','c','d'] <\/td>\n<\/tr>\n
\u2462<\/td>\nx.partition(sep)<\/td>\n\n

\u53ea\u80fd\u5206\u5272\u4e00\u6b21，\u5e76\u5f62\u6210\u5143\u7ec4，\u5206\u5272\u7b26\u4e0d\u80fd\u7701\u7565，\u82e5\u67e5\u627e\u4e0d\u5230\u76f8\u5e94\u7684\u5206\u5272\u7b26，\u5c06\u4f1a\u7528\u201c，\u201d\u66ff\u4ee3<\/p>\n<\/td>\n

 x="a-b-c-d"
\nprint(x.partition("-"))
\n#('a','-','b-c-d')
\nx="a-b-c-d"
\nprint(x.partition("*"))
\n#('a-b-c-d',",") <\/td>\n<\/tr>\n
\u2463<\/td>\nx.rpartition(sep)<\/td>\n\u53ea\u80fd\u4ece\u53f3\u4fa7\u5206\u5272\u4e00\u6b21<\/td>\n x="a-b-c-d"
\nprint(x.rpartition("-"))
\n#('a-b-c','-','d')
\nx="a-b-c-d"
\nprint(x.rpartition("*"))
\n#('a-b-c-d',",") <\/td>\n<\/tr>\n
\u2464<\/td>\nx.splitlines(keepends)<\/td>\n\n

\u6309\u7167\u6362\u884c\u7b26（\\\\n,\\\\r,\\\\r\\\\n）\u5206\u5272,\u5e76\u5c06\u5b57\u7b26\u4e32\u8f6c\u4e3a\u5217\u8868<\/p>\n

-keepends\u9ed8\u8ba4\u503c\u4e3aFalse\u610f\u4e3a\u4e22\u6389\u6362\u884c\u7b26，\u5f53keepends\u4e3aTrue\u65f6，\u4fdd\u7559\u6362\u884c\u7b26<\/p>\n<\/td>\n

 x="aa\\\\nbb\\\\rcc"
\nprint(x.splitlines())
\n#['aa','bb','cc']
\nx="aa\\\\nbb\\\\rcc"
\nprint(x.splitlines(True))
\n#['aa\\\\n','bb\\\\r','cc'] <\/td>\n<\/tr>\n
\u2465<\/td>\n\u5206\u9694\u7b26.join(\u53ef\u8fed\u4ee3\u5bf9\u8c61)<\/td>\n\n

\u5c06\u5217\u8868\u62fc\u63a5\u4e3a\u5b57\u7b26\u4e32，\u548csplit\u4f5c\u7528\u76f8\u53cd<\/p>\n

-\u53ef\u8fed\u4ee3\u5bf9\u8c61：\u5217\u8868\u3001\u5143\u7ec4\u7b49，\u91cc\u9762\u7684\u5143\u7d20\u5fc5\u987b\u5168\u90e8\u662f\u5b57\u7b26\u4e32，\u4e0d\u80fd\u662f\u6570\u5b57<\/p>\n<\/td>\n

 x=["hello","world"]
\nprint("-".join(x))
\n#"hello-world" <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e03\u3001python\u7684\u5224\u65ad\u7c7b\u65b9\u6cd5（\u8fd4\u56de\u5e03\u5c14\u503cTrue\/False）<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n\u65b9\u6cd5<\/td>\n\u4f5c\u7528<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
\u2460<\/td>\nx.islower()<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u6240\u6709\u82f1\u6587\u5b57\u6bcd\u662f\u5426\u5168\u90e8\u5c0f\u5199（\u6c49\u5b57\u3001\u6570\u5b57\u3001\u7b26\u53f7\u4e0d\u5f71\u54cd\u5224\u65ad）<\/td>\n x="hello"
\nprint(x.islower())
\n#True <\/td>\n<\/tr>\n
\u2461<\/td>\nx.isupper()<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u6240\u6709\u82f1\u6587\u5b57\u6bcd\u662f\u5426\u5168\u90e8\u5927\u5199<\/td>\n x="HELLO"
\nprint(x.isupper())
\n#True <\/td>\n<\/tr>\n
\u2462<\/td>\nx.istitle()<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u6bcf\u4e2a\u5355\u8bcd\u9996\u5b57\u6bcd\u5927\u5199，\u5176\u4f59\u5b57\u6bcd\u5c0f\u5199<\/td>\n x="Hello Python"
\nprint(x.istitle())
\n#True <\/td>\n<\/tr>\n
\u2463<\/td>\nx.isalpha()<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u5168\u90e8\u7531\u6c49\u5b57\/\u5b57\u6bcd\u6784\u6210，\u4e0d\u80fd\u5305\u542b\u6570\u5b57\u3001\u7a7a\u683c\u3001\u7b26\u53f7<\/td>\n x="\u4eca\u5929\u662f\u4e2a\u597d\u5929\u6c14"
\nprint(x.isalpha())
\n#True <\/td>\n<\/tr>\n
\u2464<\/td>\nx.isdigit()<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u53ea\u5305\u542b\u963f\u62c9\u4f2f\u6570\u5b57（0-9），\u6c49\u5b57\u6570\u5b57\u3001\u963f\u62c9\u4f2f\u6570\u5b57\u7b49\u76f4\u63a5\u8fd4\u56deFalse<\/td>\n x="2026"
\nprint(x.isdigit())
\n#True
\nx="3\u00b2"
\nprint(x.isdigit())
\n#True
\nx="\u4e8c\u96f6\u4e8c\u516d"
\nprint(x.isdigit())
\n#False <\/td>\n<\/tr>\n
\u2465<\/td>\nx.isdecimal()<\/td>\n\u4ec5\u652f\u6301\u5341\u8fdb\u5236\u963f\u62c9\u4f2f\u6570\u5b57，\u662f\u4e09\u79cd\u5224\u65ad\u6570\u5b57\u7c7b\u578b\u91cc\u9762\u6700\u4e25\u683c\u7684<\/td>\n x="2026"
\nprint(x.isdecimal())
\n#True
\nx="3\u00b2"
\nprint(x.isdecimal())
\n#False <\/td>\n<\/tr>\n
\u2466<\/td>\nx.isnumeric()<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u6570\u5b57\u7c7b\u578b\u4e2d\u8303\u56f4\u6700\u5927<\/td>\n x="2026"
\nprint(x.isnumeric())
\n#True
\nx="\u4e8c\u96f6\u4e8c\u516d"
\nprint(x.isnumeric())
\n#True
\nx="3\u00b2"
\nprint(x.isnumeric())
\n#True <\/td>\n<\/tr>\n
\u2467<\/td>\nx.isalnum()<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u5168\u90e8\u7531\u5b57\u6bcd+\u6c49\u5b57+\u6570\u5b57\u7ec4\u6210，\u65e0\u7a7a\u683c，\u6807\u70b9\u7b26\u53f7<\/td>\n x="123abc"
\nprint(x.isalnum())
\n#True <\/td>\n<\/tr>\n
\u2468<\/td>\nx.isspace()<\/td>\n\u5224\u65ad\u6574\u4e2a\u5b57\u7b26\u4e32\u5168\u90e8\u7531\u7a7a\u767d\u5b57\u7b26\u6784\u6210（\u7a7a\u683c\u3001\\\\n,\\\\t,\\\\r\u7b49），\u81f3\u5c11\u8981\u6709\u4e00\u4e2a\u7a7a\u767d<\/td>\n x=" \\\\n"
\nprint(x.isspace())
\n#True <\/td>\n<\/tr>\n
\u2469<\/td>\nx.startswith(perfix,start,end)<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u5b57\u7b26\u5f00\u5934，\u53ef\u4ee5\u9650\u5b9a\u7d22\u5f15\u8303\u56f4<\/td>\n x="hello python"
\nprint(x.startswith("he"))
\n#True
\nx="hello python"
\nprint(x.startswith("py",6,len(x)))
\n#True <\/td>\n<\/tr>\n
\u246a<\/td>\nx.endswith(suffix,start,end)<\/td>\n\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u5df2\u4ee5\u6307\u5b9a\u5b57\u7b26\u7ed3\u5c3e<\/td>\n x="hello python"
\nprint(x.endswith("on"))
\n#True
\nx="hello python"
\nprint(x.endswith("lo",0,5))
\n#True <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u516b\u3001python\u7f16\u7801\u548c\u89e3\u7801<\/h3>\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n\u65b9\u6cd5<\/td>\n\u4f5c\u7528<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
\u2460<\/td>\nx.encode(encoding，errors)<\/td>\n\n

\u5c06\u5b57\u7b26\u4e32\u8f6c\u5316\u6210\u5b57\u8282（str\u2192bytes）<\/p>\n

-encoding\u7f16\u7801\u683c\u5f0f，\u5e38\u7528utf-8\u3001gbk<\/p>\n

-errors\u9ed8\u8ba4\u4e3astrict，\u9047\u5230\u65e0\u6cd5\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u76f4\u63a5\u62a5\u9519，\u5f53\u8f93\u5165ignore\u65f6，\u76f4\u63a5\u5ffd\u7565\u4e0d\u80fd\u7f16\u7801\u7684\u5b57\u7b26；\u5f53\u8f93\u5165replace\u65f6，\u7528？\u66ff\u6362\u65e0\u6cd5\u7f16\u7801\u7684\u5b57\u7b26<\/p>\n<\/td>\n

 x="\u4e2d\u56fd"
\nprint(x.encode("utf-8"))
\n#'\\\\xe4\\\\xb8\\\\xad\\\\xe5\\\\x9b\\\\xbd'\n <\/td>\n<\/tr>\n
\u2461<\/td>\nx.decode(encoding,errors)<\/td>\n\u4f5c\u7528\u4e0eencode\u76f8\u53cd（bytes\u2192str）<\/td>\n x='\\\\xe4\\\\xb8\\\\xad\\\\xe5\\\\x9b\\\\xbd'
\nprint(x.decode("utf-8"))
\n#"\u4e2d\u56fd" <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5982\u679c\u8be5\u6587\u7ae0\u6709\u4ec0\u4e48\u9519\u8bef\u7684\u5730\u65b9\u8bf7\u53ca\u65f6\u544a\u8bc9，\u6211\u4f1a\u7acb\u5373\u6539\u6b63！<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

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\n\u76ee\u5f55
\n\u4e00\u3001python\u5b57\u7b26\u4e32\u7684\u5927\u5c0f\u5199\u8f6c\u6362
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\n\u4e09\u3001python\u5b57\u7b26\u4e32\u7684\u5bf9\u9f50\u548c\u8865\u5145
\n\u56db\u3001python\u4e2d\u67e5\u627e\u548c\u8ba1\u6570\u7684\u65b9\u6cd5 \u4e00<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[81,190],"topic":[],"class_list":["post-86284","post","type-post","status-publish","format-standard","hentry","category-server","tag-python","tag-190"],"yoast_head":"\npython\u5b57\u7b26\u4e32\u65b9\u6cd5\u5927\u5408\u96c6 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/86284.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"python\u5b57\u7b26\u4e32\u65b9\u6cd5\u5927\u5408\u96c6 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6700\u8fd1\u6211\u5b66\u4e60\u4e86bilibili\u4e0a\u5c0f\u7532\u9c7c\u7684\u300a\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60python\u300b\u4ee5\u53ca\u9605\u8bfb\u4e86\u4e66\u7c4d\u300apython\u7f16\u7a0b\u2014\u2014\u4ece\u5165\u95e8\u5230\u5b9e\u8df5\u300b\u5b66\u4e60\u5230\u4e86\u5b57\u7b26\u4e32\u7684\u4e00\u4e9b\u65b9\u6cd5，\u4f46\u8fd9\u4e9b\u65b9\u6cd5\u592a\u591a\u4e5f\u592a\u8fc7\u4e8e\u5197\u6742，\u6211\u4e00\u65f6\u534a\u4f1a\u8bb0\u4e0d\u4e86\u8fd9\u4e48\u591a，\u4e5f\u4e0d\u80fd\u9686\u56de\u8d2f\u901a\u7684\u4f7f\u7528，\u4e8e\u662f\u6253\u7b97\u7528\u8be5\u6587\u7ae0\u603b\u7ed3\u4e00\u4e0b\u8fd9\u4e9b\u65b9\u6cd5\u3002 \u76ee\u5f55 \u4e00\u3001python\u5b57\u7b26\u4e32\u7684\u5927\u5c0f\u5199\u8f6c\u6362 \u4e8c\u3001\u53bb\u9664python\u5b57\u7b26\u4e32\u7684\u7a7a\u767d\/\u6307\u5b9a\u5b57\u7b26 \u4e09\u3001python\u5b57\u7b26\u4e32\u7684\u5bf9\u9f50\u548c\u8865\u5145 \u56db\u3001python\u4e2d\u67e5\u627e\u548c\u8ba1\u6570\u7684\u65b9\u6cd5 \u4e00\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/86284.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-28T03:56:46+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/86284.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/86284.html\",\"name\":\"python\u5b57\u7b26\u4e32\u65b9\u6cd5\u5927\u5408\u96c6 - 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