整数和字符串的Python输入验证 [英] Python input validation for both integer and string

问题描述

我是编程新手，在进行输入验证时遇到问题. 我的程序需要输入1到10之间的数字或字母y，但是看来我无法为此执行错误处理程序.

I'm new in programming and I have an issue when doing the input validation. My program requires to input number from 1 to 10 or the letter y but it seems that I cannot do an error handler for this.

def checkingInput():
    while True:
        try:
            a = input()
            if 10 >= a >= 1 or a == 'y':
                return value
            else:
                print('Invalid input!')
        except NameError:
            print('Name error!Please try again!')
        except SyntaxError:
            print('Syntax Error!Please try again!')

推荐答案

jamylak建议将if条件更改为:

as jamylak suggested change the if condition to :

if a == 'y' or 1 <= int(a) <= 10:

程序:

def checkingInput():
    while True:
        try:
            a = input('enter')
            if a == 'y' or 1 <= int(a) <= 10:
                return a
            else:
                print('Invalid input!')
        except ValueError:
            print('Value error! Please try again!')

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