微信小程序之 wx.showToast延时跳转页面

wx.showToast({
                    title: '下单成功',
                    icon: 'success',
                    duration:2000,
                    //显示透明蒙层，防止触摸穿透
                    mask:true,
                    success: function () {
                      setTimeout(function () {
                        //要延时执行的代码
                          wx.reLaunch({
                            url: '../../pages/my/my',
                        })
                      }, 1500) //延迟时间
                    }
                  });