getAccess_token(){

   var that=this;

  wx.request({

    url: 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=xxxx&secret=xxx',

    method: 'GET',

    success(res) {

      console.log("access_token",res.data.access_token)

      var access_token = res.data.access_token;  

      that.yesorno(access_token,that.data.SessionTotal);

    },

    fail(res) {

      console.log("res",res)

      console.log("access_token获取失败")

      that.addforum();

    }

  })

 },