如何在文本文件中搜索多个字符串

def search_strings_in_file(file_path, strings_to_search):
    with open(file_path, 'r') as file:
        content = file.read()
        for string in strings_to_search:
            positions = []
            index = 0
            while index < len(content):
                index = content.find(string, index)
                if index == -1:
                    break
                positions.append(index)
                index += len(string)
            print(f"字符串 '{string}' 出现的位置: {positions}")

file_path = 'path/to/your/text/file.txt'
strings_to_search = ['string1', 'string2', 'string3']
search_strings_in_file(file_path, strings_to_search)