Python在多个子目录中的文件中搜索特定字符串并返回文件路径(如果存在

import os

def search_string(start_path, target_string):
    file_paths = []
    
    for root, dirs, files in os.walk(start_path):
        for file in files:
            file_path = os.path.join(root, file)
            
            # 打开文件并搜索特定字符串
            with open(file_path, 'r') as f:
                content = f.read()
                if target_string in content:
                    file_paths.append(file_path)
    
    return file_paths

start_path = '/path/to/directory'
target_string = '特定字符串'

result = search_string(start_path, target_string)
if len(result) > 0:
    for file_path in result:
        print(file_path)
else:
    print('未找到包含特定字符串的文件')