pythonz字符串的所有子串 Pythonz字符串用法大全

简介自学python过程中的记录
str【pythonz字符串的所有子串 Pythonz字符串用法大全】name = "Wangdc"user = "my name is {names}"print(name.capitalize()) # 首字母大写print(name.count("i"))# 统计出现的次数print(name.center(50,"-")) # 共50字符，不够用-补全print(name.endswith("x")) # 判断是否以x结尾# print(name.expandtabs(tabsize=30))print(name[name.find("wx"):])print(user.format(names = 'Wangdc'))print(user.format_map({'names' : 'Wangdcx'}))print(name.isalnum()) # 是不是阿拉伯数字print(name.isalpha())print('A16'.isdecimal()) # 是不是十进制print('A16'.isdigit())print('A16'.isidentifier()) # 判断是否为一个合适的标识符变量名print(name.islower()) # 是否为小写print(name.isnumeric()) # 是否为数字（整数）print(name.isspace()) # 是否为空格print('My Name Is '.istitle()) # 是否首字母大写print('My Name Is '.isprintable()) # tty文件，driver文件print('My Name Is '.isupper()) # 是否都是大写print(','.join(['1','2','3'])) # 将字符串加到列表值中间print(name.ljust(50,'*')) print(name.rjust(50,'*'))print(name.lower()) # 转换为小写print(name.upper()) # 转换为大写print(name.lstrip()) # 从左边去除回车\nprint(name.rstrip())print(name.strip()) # 去除所有空格和回车p = str.maketrans("abcdefghi",'123456789') # 随机密码print('Wangdc'.translate(p))print('Wangdc'.replace('w','W'))# 大小写替换print('Wangdc'.rfind('x')) # 从左往右面开始查找，查找最后一个匹配项print('Wangdc name'.split('i')) # 默认空格，可指定分隔符print('Wangdc\name'.splitlines()) # 按换行符分割print('Wangdc name'.swapcase()) # 原来大写，输出小写print('Wangdc name'.title())print('Wangdc name'.zfill(50)) # 位数不够，用0填充