PYTHON例题---判断日期是否合法

def isValidDate(date):
    date = date.split("/")
    month = int(date[0])
    day = int(date[1])
    year = int(date[2])
    if month is 1 | month is 3 | month is 5 | month is 7 | month is 8 | month is 10 | month is 12:
        if day > 31:
            return False
        else:
            return True
    if month is 4 | month is 6 | month is 9 | month is 11:
        if day > 30:
            return False
        else:
            return True
    if month is 2:
        if year % 4 == 0 & year % 400 != 0:
            if day > 29:
                return False
            else:
                return True
        else:
            if day > 28:
                return False
            else:
                return True
    raise NotImplementedError()

以上代码用于定义一个可以赋值的函数。

assert isValidDate('02/29/2020') == True
assert isValidDate('03/31/2020') == True
assert isValidDate('04/31/2020') == False
assert isValidDate('02/29/3000') == False
assert isValidDate('2/29/2020') == False
assert isValidDate('12/2/2020') == False
assert isValidDate('12/02/500') == False
assert isValidDate('02/29/0000') == False

快去试试吧！