<form bindsubmit="formSubmit" bindreset="formReset"> <slider name="slider" show-value min="-1" max="10" value="1" ></slider> <view class="btn-area"> <button formType="submit">Submit</button> <button formType="reset">Reset</button> </view> </form> formSubmit: function (e) { console.log('form发生了submit事件，携带数据为：', e.detail.value) }, formReset: function () { console.log('form发生了reset事件') }, slider 拖动到1时，正常，form发生了submit事件，携带数据为： {slider: 1} slider 拖动到0时，就出现slider为空！！！！ index.js? [sm]:8 form发生了submit事件，携带数据为： {slider: ""}

slider在form中的BUG,拖到0时，form对应的value为空 这个BUG什么时候解决？

开发中，只能通过console.log查看globalData的值，非常不方便，建议在调试窗口，可看globalData数据！

// 云函数入口文件 const cloud = require('wx-server-sdk') const mysql=require('mysql2/promise') cloud.init() // 云函数入口函数 exports.main = async (event, context) => { const connection=await mysql.createConnection({ host:'mysql57.rdsmj85epr606zi.rds.bj.baidubce.com', user:'sam', database:'samMYSQL', password:'xxxxxxxx', }) const [rows, fields] = await connection.execute('SELECT version();') return rows } 错误如下： WAService.js:1 Uncaught (in promise) Error: errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID 8a0ca2a7-f0f0-11e9-af3a-525400192d0e, cloud function service error code -504002, error message Cannot read property 'execute' of undefined; at cloud.callFunction api;      at new u (WAService.js:1)     at d (WAService.js:1)     at f (WAService.js:1)     at Function.success (WAService.js:1)     at WAService.js:1     at C (WAService.js:1)     at i.<anonymous> (WAService.js:1)     at i.emit (WAService.js:1)     at Rs (WAService.js:1)     at WAService.js:1

var screenbright=0.5 getScreenBrightness:function(){ wx.getScreenBrightness({ success(res){ console.log("screenbrightness",res) screenbrightness:res.value } }) }, /**setScreenBrightness   * 真机测试不稳定   */ setScreenBrightness:function(){ var temp=screenbrightness+0.1 screenbrightness=temp wx.setScreenBrightness({ value: (temp>1?1:temp), success(res){ console.log("setScreenBrightness",res) } }) }, screenbrightness {value: 0.25147944688796997, errMsg: "getScreenBrightness:ok"} index.js:28 setScreenBrightness {errMsg: "setScreenBrightness:ok"} index.js:14 screenbrightness {value: 0.6000000238418579, errMsg: "getScreenBrightness:ok"} index.js:28 setScreenBrightness {errMsg: "setScreenBrightness:ok"} index.js:14 screenbrightness {value: 0.699999988079071, errMsg: "getScreenBrightness:ok"} index.js:28 setScreenBrightness {errMsg: "setScreenBrightness:ok"} index.js:14 screenbrightness {value: 0.800000011920929, errMsg: "getScreenBrightness:ok"} index.js:28 setScreenBrightness {errMsg: "setScreenBrightness:ok"} index.js:14 screenbrightness {value: 0.8999999761581421, errMsg: "getScreenBrightness:ok"} index.js:28 setScreenBrightness {errMsg: "setScreenBrightness:ok"} index.js:14 screenbrightness {value: 1, errMsg: "getScreenBrightness:ok"} index.js:28 setScreenBrightness {errMsg: "setScreenBrightness:ok"} index.js:14 screenbrightness {value: 1, errMsg: "getScreenBrightness:ok"} index.js:14 screenbrightness {value: 0.2415519505739212, errMsg: "getScreenBrightness:ok"} index.js:28 setScreenBrightness {errMsg: "setScreenBrightness:ok"} index.js:14 screenbrightness {value: 0.2415519505739212, errMsg: "getScreenBrightness:ok"}