python - 检查密码库的长度

Question

这个问题已经有答案了:

Asking the user for input until they give a valid response (22 个回答)

已关闭 4 年前。

更新的错误代码，现在可以成功检查输入以及最大和最小值更新的错误代码，现在可以成功检查输入以及最大和最小值更新的错误代码，现在可以成功检查检查输入以及最大值和最小值

print("------------------------------------------------------------------------")
print('''Welcome to password Locker, a place where you can 
store all your passwords to easily enter your precious accounts without
hassle.''')
print("------------------------------------------------------------------------")



print('''First lets make an account,''')

while True:
    first_name = input('''What is your first name?''')
    if first_name.isdigit():  #isdi
        print("No numbers")
    else:
        print("Eligible")
        break

while True:
        sur_name = input('''What is your surname?''')
        if sur_name.isdigit():  #isdi
            print("No numbers")
        else:
            print("Eligible")
            break

print('''----------------------------------''')
print('''Welcome, {} {} 
what would you like your username to be, it should be something 
memorable and no longer than ten characters long'''.format(first_name, sur_name))
while True:
        username = input("")
        if 0 < len(username) < 10:
                print('''Nice, username''')
                break
        elif not username:
            pass

        else:
            print('''Your username should be a maximum of 10 charecters''')
while True:
    locker_password = input('''Now it's time to setup a password for your locker: ''')
    if len(locker_password) > 4 and len(locker_password) < 11:

        print('''{}, is locked in thanks for joining Password Locker'''.format(locker_password))       
    else:
        print("It should be between 4 and 10 charecters long!")```


  [1]: /image/4JnoH.png

Answer 1

添加带有条件的 elif 并稍微修改 if 条件:

username = input('''Welcome, {} {} 
what would you like your username to be, it should be something 
memorable and no longer than ten characters long
'''.format(first_name, sur_name))
while True:
        username = input()
        if 0 < len(username) < 10:
                print('''Nice, username''')
                break
        elif not username:
            pass

        else:
            print('''Your username should be a maximum of 10 charecters''')

示例输出:

Welcome, Bob Smith 
what would you like your username to be, it should be something 
memorable and no longer than ten characters long

Welcome, Bob Smith 
what would you like your username to be, it should be something 
memorable and no longer than ten characters long
12133254827258426763589
Your username should be a maximum of 10 charecters
Welcome, Bob Smith 
what would you like your username to be, it should be something 
memorable and no longer than ten characters long
abc
Nice, username