如何检查字符串中是否有字母/数字/符号？(Python)

import string
import re

def check_string(string):
    has_letter = any(char.isalpha() for char in string)
    has_digit = any(char.isdigit() for char in string)
    has_symbol = any(char in string.punctuation for char in string)
    
    # 正则表达式方式
    #has_letter = bool(re.match(r'^[a-zA-Z]+$', string))
    #has_digit = bool(re.match(r'^\d+$', string))
    #has_symbol = bool(re.match(r'^\W+$', string))
    
    return has_letter, has_digit, has_symbol

# 测试示例
input_string = "Hello, World! 123"
has_letter, has_digit, has_symbol = check_string(input_string)
print("包含字母:", has_letter)
print("包含数字:", has_digit)
print("包含符号:", has_symbol)

包含字母: True
包含数字: True
包含符号: True