题解 | 统计字符

def total_all(n):
    e = 0
    s = 0
    d = 0
    o = 0
    for i in n:
        if i.isalpha():
            e += 1
        elif i.isspace():
            s += 1
        elif i.isdigit():
            d += 1
        else:
            o += 1
    return e,s,d,o
n = input().strip()
for i in total_all(n):
    print(i)