def post(self, url, param_dict, param_header, file='', param_type='x-www-form-urlencode'):
        """
        @功能：封装post方式
    　　@paramType:指传入参数类型，可以是form-data、x-www-form-urlencode、json
        """
        respone_code = None
        respone = None
        try:
            if param_type == 'x-www-form-urlencode':
                params = param_dict
            elif param_type == 'json':
                params = json.dumps(param_dict)
            if file == '':
                ret = requests.post(self.Server + url, data=params, headers=param_header)
            else:

                files = {'file': open(file, 'rb')}
                ret = requests.post(self.Server + url, data=params, headers=param_header, files=files)
                respone_code = ret.status_code
                respone = ret.text

        except requests.HTTPError, e:
            respone_code = e.getcode()
            respone = e.read().decode("utf-8")

        print respone_code#, respone
        return respone_code, respone