没事做了个猜数字的游戏：

#! /usr/bin/env python
#coding=utf-8

import random #导入python的随机数的包

def guss():
    Flag = True #循环标记
    gussednum = random.randint(1,100)#生成1到100的随机数
    while Flag is True:
        try:
            num = int(raw_input("Please entry you number:"))
            if num < gussednum: #比较输入的数字与生产的随机数大小等并给出提示
                print "You number is letter"
            elif num > gussednum:
                print "You number is large"
            elif num == gussednum:
                print "You are great"
                Flag = False#如果猜对了就退出
        except :
                print "you number is error" #出入不是数字就报错

if __name__ == "__main__":
    guss()

python猜数字游戏