// 获取卡包参数

 uni.request({
                url: \'***\', //接口地址。
                data: {
                    cardId: _this.cardId,
                },
                method: \'POST\',
                success: (res) => {
                    if (res.data.card_id) {
                        //将请求回来的参数保存到wxCardData中
                        _this.wxCardData = res.data;
                    } else {
                        console.log(\'获取微信卡券信息失败！\');
                        return;
                    }
                }
            });

getCoupon(){
            let _this = this;
　　　　　　　　//微信卡包参数
            let cardExt = {
                api_ticket: _this.wxCardData.api_ticket,
                openid: _this.wxCardData.openid,
                timestamp: _this.wxCardData.timestamp,
                nonce_str: _this.wxCardData.nonceStr,
                signature: _this.wxCardData.signature,
                outer_str: \'miniProgram\' 
            };
　　　　　　　　//添加到微信卡包
            wx.addCard({
                cardList: [
                    {
                        cardId: _this.vipCard.cardId,
                        cardExt: JSON.stringify(cardExt)
                    }
                ],
                success: res => {
　　　　　　　　　　　　//添加成功跳转
                    uni.navigateTo({
                        url: \'****\'
                    });
                },
                fail: err => {
                    console.log(err);
                }
            });
        },

goWeixinCard(){
            let _this = this;
            let cardExt = {
                api_ticket: _this.wxCardData.api_ticket,
                openid: _this.wxCardData.openid,
                timestamp: _this.wxCardData.timestamp,
                nonce_str: _this.wxCardData.nonceStr,
                signature: _this.wxCardData.signature,
                outer_str: \'miniProgram\'
            };
            wx.addCard({
                cardList: [
                    {
                        cardId: _this.vipCard.cardId,
                        cardExt: JSON.stringify(cardExt)
                    }
                ],
                success: res => {
                    uni.navigateTo({
　　　　　　　　　　　　　　//添加成功的跳转
                        url: \'***\'
                    });
                },
                fail: err => {
                    console.log(err);
                }
            });
        },