题解 | 统计字符

def func():
    slist = input()

    a, b, c, d = 0, 0, 0, 0
    for s in slist:
        if s.isalpha():
            a = a + 1
        elif ord(s) == ord(' '):
            b = b + 1
        elif s.isdigit():
            c = c + 1
        else:
            d = d + 1

    print(a)
    print(b)
    print(c)
    print(d)

if __name__ == "__main__":
    func()