小程序代码如下，代码中根本没有弹框提示：

// 调起微信支付

  wxrequestPay: function () {

    let that = this

    let payInfo = that.data.payInfo

    wx.requestPayment({

      timeStamp: payInfo.timeStamp,

      nonceStr: payInfo.nonceStr,

      package: payInfo.package,

      signType: 'MD5',

      paySign: payInfo.paySign,

      success(res) {

        this.refresh()

      },

      fail(res) {

      }

    })

  },