python怎么统计数字和字母的个数

可以使用Python的isalpha()和isdigit()方法来统计字符串中数字和字母的个数。下面是一个示例代码：

def count_alpha_digit(s):    alpha_count = 0    digit_count = 0        for char in s:        if char.isalpha():            alpha_count += 1        elif char.isdigit():            digit_count += 1        return alpha_count, digit_counts = "Hello123"alpha_count, digit_count = count_alpha_digit(s)print(f"字母个数：{alpha_count}")print(f"数字个数：{digit_count}")

运行以上代码将输出：

字母个数：5数字个数：3