从文件中读取请求头，并根据格式化字符串模板，进行字符串格式化
    :param file_name:
    :param params:
    :return:

def read_request(file_name, **params):
    """
    从文件中读取请求头，并根据格式化字符串模板，进行字符串格式化
    :param file_name:
    :param params:
    :return:
    """
    with open(file_name, 'r') as f:
        data = f.read()
        return read_request_from_str(data, **params)