Python3在跳转到其他州的时候

Question

我刚开始编程的几周。我试图做一个函数，要求用户输入，检查输入是否是字母，如果是字母，那么我想打破while循环

如果我运行脚本并在输入中输入正确的类型，它就会中断并正常工作。如果我故意在输入字段中输入一个数字，当我重新输入正确的类型时，它不会跳出循环

你知道我做错了什么吗

def wallType():
    wall_type = input("What type of wall was the route on?  ")
    while wall_type:
        #if there is text in the input,instead of an alphanumeric, then tell them they must put in a number.
        if str.isalpha(wall_type):
            return wall_type
        else:
            print("You entered a number, you must enter a word. Try again.  ")
            wallType()

Answer 1

将代码放入while True循环中。当接收到的输入按字母顺序排列时，使用break跳出while循环。否则再次循环以请求输入

def wallType():
    while True:
        wall_type = input("What type of wall was the route on?  ")

        # string is alphabetic, break out of loop
        if str.isalpha(wall_type):
            break
        else:
            print("Please reenter an alphabetic word. Try again.  ")