python练习

统计字符串字符个数，空格字符个数，数字字符个数，其他字符个数

import strings=input('bbkgjb:')letters=0space=0digit=0others=0for ch in s:    if ch.isalpha():        letters+=1    elif ch.isspace():        space+=1    elif ch.isdigit():        digit+=1    else:        others+=1print (letters,space,digit,others)

.lamba 实现两数求最值

Max=lambda x,y:(x>y)*x+(y>x)*yMin=lambda x,y:(x<y)*x+(y<x)*yif __name__=='__main__':    print ('max={0},min={1}'.format(Max(10,2),Min(10,2)))