Python实现：一行字符串各类字符（数字、大小写、空格、特殊字符）个数统计

```python # 读取输入字符串 s = input() # 初始化计数器 digit_count = 0 upper_count = 0 lower_count = 0 space_count = 0 special_count = 0 # 遍历字符串中的每个字符 for char in s: if char.isdigit(): digit_count += 1 elif char.isupper(): upper_count += 1 elif char.islower(): lower_count += 1 elif char == ' ': space_count += 1 else: special_count += 1 # 输出结果 print(digit_count, upper_count, lower_count, space_count, special_count) ``` ######[AI问答 | 147点数解答 | 2025-12-14 20:09:54]