15-위챗 스팸

   // 
    selectemenu: function(e) {
      let name = e.detail.name;
      console.log(name)
      if (name == ' ') {
        this.setData({
          showModal: true
        })
      } else {
        this.getQRCode()
      }

    },

 //  
    getQRCode: function() {
      var that = this
      wx.scanCode({ // API
        success: function(res) {
          console.log(res); // 
          let classid = res.result
          that.setData({
            classid
          });
          console.log(classid)
        //   jiaru 
            that.jiaru()
        }
      })
    },