Python自动化之列表

##将首字母改成大写# name = ‘alex‘# v = name.capitalize()# print(v)

##将首字母改成小写# name = ‘Alex‘# v = name.casefold()# print(v)

###传一个值，两边补的是添加的字符# name = ‘Alex‘# v = name.center(20,‘*‘)# print(v)

##统计字符串出现的次数# name = ‘Alex‘# v = name.count(‘A‘)# print(v)

##判断字符的结尾是否以某个字符串结尾的# name = ‘Alex‘# v = name.endswith(‘ex‘)# print(v)

##制表符（包含前边的值，整体占8个）# name = ‘Alex\tegon\twupeiqi‘# v = name.expandtabs(8)# print(v)

##索引# name = ‘Alex‘# v = name.find(‘A‘)# print(v)

##字符串格式化# tpl = ‘我是:{0};年龄:{1};性别:{2}‘# v = tpl.format(‘李杰‘,‘12‘,‘女‘)# print(v)

# tpl = ‘我是:{name};年龄:{age};性别:{sex}‘# v = tpl.format(name = ‘李杰‘,age = 12,sex = ‘女‘)# print(v)

##根据键找到对应位置的值# tpl = ‘我是:{name};年龄:{age};性别:{sex}‘# v = tpl.format_map({‘name‘:‘李杰‘,‘age‘:‘12‘,‘sex‘:‘女‘})# print(v)

##找到对应字符串的索引# name = ‘Alex‘# v = name.index(‘A‘)# print(v)

#判断# name = ‘Alex‘# v = name.isalnum()#只能包含字母、数字、汉字# print(v)

##判断是否全部为字母# name = ‘Alex‘# v = name.isalpha()# print(v)

##判断是否全部为阿拉伯数字# my_num = ‘123‘# v = my_num.isdecimal()# print(v)

##能识别阿拉伯数字②# my_num = ‘123②‘# v = my_num.isdigit()# print(v)

##能识别多种字符# my_num = ‘123②二‘# v = my_num.isnumeric()# print(v)

##判断是否为关键字# my_num = ‘num‘# v = my_num.isidentifier()# print(v)

##判断是否都为小写# name = ‘alex‘# v = name.islower()# print(v)

##在字符串中出现的打印不出来的为False# name = ‘al\nex‘# v = name.isprintable()# print(v)

##判断是否全部为空格# name = ‘al ex‘# v = name .isspace()# print(v)

##判断是否全部为大写# name = ‘alex‘# v = name.isupper()# print(v)

#内部循环每一个元素# name = ‘alex‘# v = ‘*‘.join(name)# print(v)

##把值放到左边，右边填充相应剩下长度的字符# name = ‘alex‘# v = name.ljust(20,‘*‘)# print(v)

##不仅可以移除空白，也可以移除换行符，制表符也可以自定义# name = ‘alex‘# v = name.strip(‘x‘)# print(v)

##将字符串的大小写互换# name = ‘Alex‘# v = name.swapcase()# print(v)

##替换字符串# name = ‘你love他‘# v = name.replace(‘love‘,‘爱‘)# print(v)

##分割，将分割后的元素剔除# name = ‘你love他‘# v = name.split(‘love‘)# print(v)