#region 添加激活时的自定义字段

                                    string customFiled = "{";

                                    customFiled += "\"card_id\": \"" + cardId + "\",";//cardId是卡券的ID，请看我上一篇的文章

                                    customFiled += "\"required_form\": {";

                                    customFiled += "\"can_modify\": false,";

                                    customFiled += "\"common_field_id_list\": [\"USER_FORM_INFO_FLAG_MOBILE\"]";

                                    customFiled += "}";

                                    customFiled += "}";

                                    string customUrl = "https://api.weixin.qq.com/card/membercard/activateuserform/set?access_token=" + access_token;

                                    string resultCustom = PostWebRequest(customUrl, customFiled);

                                    resultCustom = "[" + resultCustom + "]";

                                    Newtonsoft.Json.Linq.JArray jsCustomArr = (Newtonsoft.Json.Linq.JArray)JsonConvert.DeserializeObject(resultCustom);

                                    Newtonsoft.Json.Linq.JObject jsCustomObj = (Newtonsoft.Json.Linq.JObject)jsCustomArr[];

　　　　　　　　　　　　　　　　　　　　　　//接受微信返回的数据

                                    #endregion