如何删除文件中具有匹配字符串但不以#开头的行？

import re

def remove_lines_with_match(file_path, pattern):
    new_lines = []
    
    with open(file_path, 'r') as file:
        lines = file.readlines()
        
        for line in lines:
            # 使用正则表达式匹配字符串，并且判断是否以#开头
            if re.match(pattern, line) and not line.startswith('#'):
                continue
            else:
                new_lines.append(line)
    
    with open(file_path, 'w') as file:
        file.writelines(new_lines)

# 调用函数并传入文件路径和匹配字符串的模式
remove_lines_with_match('example.txt', 'your_pattern_here')