setInterval(function(){           var letftime=res.data.time-(Math.round(new Date().getTime()/1000).toString())           if(letftime<=1){           that.setData({             h:'00',m:'00',s:'00'             })             return;           }           var hour=Math.floor(letftime/3600)           var minute=Math.floor((letftime-hour*3600)/60)           var second=Math.floor(letftime-hour*3600-minute*60)           if(minute>=0&&second>=0){             that.setData({               m:minute<10?'0'+minute:minute,               s:second<10?'0'+second:second,               h:hour<10?'0'+hour:hour             })           }         })

<button class="weixin_btn" open-type="getUserInfo" @getuserinfo="bindGetUserInfo">在开发者工具中能在正常弹窗，但是在调试阶段跟上线后就不能正常弹窗了，点击按钮后直接就获取到昵称为“微信用户”头像是黑的，请问这是什么原因

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