//获取并保存微信用户信息
        getSign() {
          var _that = this;
          _that.loading = true;
           axios({
             url: this.imgUrl+"/rest/vvm.wechat.config",
             method: "POST",
             data: {
              "h":{
                "t":"4d092ee240779ae8a34678593390422f" // 请求校验token
              },
              "d":{
                "a":1, // 必传1
                "u":window.location.href.split('#')[0], // 需要访问的url
                "orderId":_that.orderId
              }
             },
             headers: {
               "content-type": "application/json"
             }
           }).then(function(res) {
           var datas = res.data.d;
           _that.loading = false;
           // 分享配置
           wx.config({
             debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
             appId: datas.appId, // 必填，企业号的唯一标识
             timestamp: datas.timestamp, // 必填，生成签名的时间戳
             nonceStr: datas.nonceStr, // 必填，生成签名的随机串
             signature: datas.signature, // 必填，签名，见附录1
             jsApiList: ["onMenuShareTimeline", "onMenuShareAppMessage",'hideMenuItems']
           });
           wx.ready(function() {
            wx.hideMenuItems({// 要隐藏的菜单项，只能隐藏“传播类”和“保护类”按钮，所有menu项见附录3
               menuList: ['menuItem:share:qq', 'menuItem:share:QZone','menuItem:openWithSafari']
              });
           //分享到朋友圈
            wx.onMenuShareTimeline({
              title: "【我要免邮】点赞助力减免邮费领豪礼",
              link:_that.links+'/payment_page/prize.html?orderId='+ _that.orderId,
              imgUrl: _that.links+'/luckyLottery/images/shareLogo.png',
              success: function() {
                weui.toast("分享成功");
              },
              cancel: function() {
              }
            });
            //分享给朋友
            wx.onMenuShareAppMessage({
              title: "【我要免邮】点赞助力减免邮费领豪礼",
              desc: "万水千山总是情，帮我点赞行不行",
              link:_that.links+'/payment_page/prize.html?orderId='+ _that.orderId,
              imgUrl: _that.links+'/luckyLottery/images/shareLogo.png',
              success: function() {
                weui.toast("分享成功");
              },
              cancel: function() {
              }
            });
          });
         },function(err){
           _that.loading = false;
         });
        },