示例一: AGE = 20 count = 0 while True: if count == 5: break GUESS = int(input("AGE:")) if GUESS == AGE : print("It is right!") break elif GUESS > AGE : print("It is bigger!") else: print("It is small!") count +=1 if count == 5: print("You hava tried too many times!") 示例二: _user="root" _passwd="okooo123" count = 0 while count<3: username = input("user:") passwd = input("passwd:") if _user == username and _passwd == passwd: print("Welcome") break elif _user != username or _passwd !=passwd: print("username or password is wrong") count +=1 else: print("Too many times wrong !") 示例三: user = "root" count =0 while count <5: Guess = input("user:") if Guess == user: print("It is right!") break elif Guess != user: print("It is wrong!") count +=1 else: print("You input were wrong!")
上面的三个示例均可实现while循环的基本知识,建议使用示例二的写法。
时间: 2024-10-11 01:16:52