python之猜数字游戏

from random import *
a = randint(1,100)
guess = 0
while True:
    num = input("猜想的数字:")
    guess += 1
    if not num.isdigit():
        print("请输入数字")
    elif int(num) < 0 or int(num) >=100:
        print("输入的数字超出了范围!")
    else:
        if int(num) == a:
            print("恭喜您猜对了!")
        elif int(num) > a:
            print("您输入的数字大了!")
        elif int(num) < a:
            print("您输入的数字小了!")
        else:
            print("系统发生未知错误，请联系工做人员进行处理!")