用python编写函数接收一个字符串，分别统计大写字母、小写字母、数字、其他字符的个数，并以元组的形式返回结果

def count_chars(s):
    upper = 0
    lower = 0
    digit = 0
    other = 0
    for c in s:
        if c.isupper():
            upper += 1
        elif c.islower():
            lower += 1
        elif c.isdigit():
            digit += 1
        else:
            other += 1
    return (upper, lower, digit, other)

使用示例：

s = "Hello World! 123"
print(count_chars(s))  # 输出 (2, 8, 3, 3)