【Python 学习】通过while循环和for循环猜测年龄

时间：2021-04-08 05:34:25

Python中可以通过while和for循环来限制猜测年龄的次数

 

1. 在猜测年龄的小程序中，不加循环的代码是这样的：

age_of_yu = 23 guess_age = int(input("guess_age:")) if guess_age == age_of_yu: print("you got it!") elif guess_age > age_of_yu: print("think smaller...") else: print("think bigger...")

# 这里的  int(input("guess_age:")) 是将变量定义的默认数据类型（str）强制转换成 int 类型，从而可以进行 if 的条件比较

 

2.  通过for循环限制猜测年龄的次数为3次

age_of_yu = 23

for i in range(3): guess_age = int(input("guess_age:")) if guess_age == age_of_yu: print("you got it!") break
    elif guess_age > age_of_yu: print("think smaller...") else: print("think bigger...") else: print("you have tried too many times!")

 

3. 通过 while 循环限制猜测年龄的次数为3次

age_of_yu = 23 count = 0 while count < 3: guess_age = int(input("guess_age:")) if guess_age == age_of_yu: print("you got it!") break
    elif guess_age > age_of_yu: print("think smaller...") else: print("think bigger...") count += 1

else: print("you have tried too many times!")

 

4. 猜测年龄，要求猜到三次询问是否还要继续猜测，如果输入"n"则表示继续猜，否则表示不继续

age_of_yu = 23 count = 0 while count < 3: guess_age = int(input("guess_age:")) if guess_age == age_of_yu: print("you got it!") break
    elif guess_age > age_of_yu: print("think smaller...") else: print("think bigger...") count += 1
    if count == 3: continue_guess = input("Do you want to go on guessing ?(输入n结束，输入其他任意键继续...)") if continue_guess != 'n': count = 0 else: print("guessing end...")

 

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