在子目录中的多个文件中搜索列表中的每个字符串，并返回找到的字符串列表

import os

def search_strings_in_files(directory, file_list, string_list):
    result = []
    for root, dirs, files in os.walk(directory):
        for file in files:
            if file in file_list:
                file_path = os.path.join(root, file)
                with open(file_path, 'r') as f:
                    content = f.read()
                    for string in string_list:
                        if string in content:
                            result.append(string)
    return result

# 示例用法
directory = '/path/to/directory'  # 替换为实际的子目录路径
file_list = ['file1.txt', 'file2.txt']  # 替换为实际的文件列表
string_list = ['string1', 'string2']  # 替换为实际的字符串列表

result = search_strings_in_files(directory, file_list, string_list)
print(result)