最近几天在看些基础知识，然后遇到一个小甲鱼老师，修改了下他的课堂例子。
大概就是猜数字，有三次机会，如果输入的不是数字就直接结束，如果是数字就会判断是否是心里的数字，提醒大小。

import random
#Guess = input("請猜猜我心裏想的是什麽數字：")
RightGuess = random.randint(0,10)

Guess = input("請猜猜我心裏想的是什麽數字：")
for i in range(3) :
    try:
        UserGuess = int(Guess)
        a = isinstance(UserGuess, int)
        a !=True
    except ValueError:
        print("你輸入有誤！")
        break
    else:
        if(UserGuess >RightGuess):
            print("你猜大啦！")
            Guess = input("請繼續：")
            try:
                UserGuess = int(Guess)
                a = isinstance(UserGuess, int)
                a != True
            except ValueError:
                print("你輸入有誤！")
                break
            if(i==1):
                print("猜錯三次了！")
                break
        elif(UserGuess <RightGuess):
            print("你猜小啦！")
            Guess = input("請繼續：")
            try:
                UserGuess = int(Guess)
                a = isinstance(UserGuess, int)
                a != True
            except ValueError:
                print("你輸入有誤！")
                break
            UserGuess = int(Guess)
            if (i == 1):
                 print("猜錯三次了！")
                 break
        else:
            print("哇，你是我心裏的蛔蟲嗎？")
            print("但是猜對了也沒有獎勵！")
            break
print("游戲結束了！")