#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_characters(input_string): uppercase_count = 0 lowercase_count = 0 number_count = 0 other_count = 0 for ch in input_string: if ch.isupper(): uppercase_count += 1 elif ch.islower(): lowercase_count += 1 elif ch.isnumeric(): number_count += 1 else: other_count += 1 return (uppercase_count, lowercase_count, number_count, other_count) print(count_characters("ABCaaaaaa123456BBBbbbbbbb"))