py素数

"""

# -*- coding: cp936 -*-

#求500内的所有素数

t=[]

def num():

for i in range(1,501):

if i%2!=0:

print‘是素数‘,i

print num()

#!/usr/bin/python

#-*- coding:utf-8 -*-

#there is no ++ operator in Python

import string

def main():

s=raw_input(‘请输入:‘)

letter=0

space=0

digit=0

other=0

for i in s:

if i.isalpha():

letter+=1

elif i.isspace():

space+=1

elif i.isdigit():

digit+=1

else:

other+=1

print‘你输入的字母%d:,空格%d:,数字%d:,其他%d:‘%(letter,space,digit,other)

if __name__==‘__main__‘:

main()

"""