强调:eval()函数功能虽然强大,但是也很危险,这个方法需要慎重使用. 利用python中的内置函数 eval() ,函数说明: def eval(*args, **kwargs): # real signature unknown """ Evaluate the given source in the context of globals and locals. The source may be a string representing a Python expre
1.首字母大写 >>> s = 'yuanzhumuban' >>> s.capitalize() 'yuanzhumuban' 2.replace,替换 >>> s = 'my name is yuanzhumuban, age is 20' >>> s 'my name is yuanzhumuban, age is 20' >>> s.replace( '20', '30' ) 'my name is yua
#Author:ersa name = "ersa" #首字母大写capitalize() print(name.capitalize()) name = "my name is ersa" #字符串中 子串 重复的次数 print(name.count("a")) #center() 字符串打印输出在行中间,并指定打印长度,不够可用其他字符补充 print(name.center(50,'-')) #endswith() 判断字符串以什么结尾?
2018-04-09 update 利用python中的内置函数 eval() ,函数说明: def eval(*args, **kwargs): # real signature unknown """ Evaluate the given source in the context of globals and locals. The source may be a string representing a Python expression or a code obj