尝试除了在while循环中

Question

我try except在while循环中遇到问题.我还是比较新的编程,这是我的A2 Comp4项目的一部分.

def CheckValidInitials(initials):
    CheckIfTrue = False
    Count = 1
    while CheckIfTrue == False:
        while len(initials) == int(3) or len(initials) == int(4):
            listInitials = list(initials)
            print(len(initials))
            while len(listInitials) - Count >= 0:
                print(len(initials))
                print(len(listInitials) - Count)
                Count = Count + 1
                print(listInitials)
                try:
                    int(listInitials[Count])
                except IndexError and ValueError:
                    CheckIfTrue = True
                else:
                    print("One of your initials is a number, this is not valid")
                    print()
                    Count = 1
                    initials = input("Please enter valid initials: ")
                    listInitials = list(initials)

        else:
            initials = input("Please enter valid initials: ")
        return initials

我一直收到这个错误:

  File "D:\A2 Computing\Comp4\Prototype\Prototype Mk 3\TeacherInfo.py", line 105, in CheckValidInitials
    int(listInitials[Count])
IndexError: list index out of range

我的问题是,我认为我的格式IndexError是我的try except.它应该是抛出这个问题.

整个代码应该检查首字母(在另一个函数中输入)是否包含任何数字.

Answer 1

多个异常的语法是:

except (RuntimeError, TypeError, NameError):

and不是这种语法的公认部分; IndexError and ValueError评估为ValueError,所以任何IndexErrors都不会被捕获.