/**获取新消息 */

getNewMessage: function () {

var yinli = this

setInterval(function () {

var key = ‘message’ + yinli.data.chatID

var msgData = wx.getStorageSync(key)

//console.log(msgData)

if (msgData) {

for (let i in msgData) {

yinli.sendMsg(msgData[i])

}

wx.removeStorageSync(key)

}

}, 2000) //循环时间

},

/**消息加入内存中**/

sendMsg: function (sData) {

var that = this

var scrData = that.data.scr

that.data.msg = that.data.msg.concat(sData) //执行到这步,值已经改变

that.setData({ //setData会间歇性不执行

msg: that.data.msg ,

scr: scrData + 100

})

},

部分代码如上,程序流程是定时从本地缓存拿到值后遍历加入变量中,加入变量的操作通过setData实现,问题出在that.setData那里,发现它会间歇性不执行setData,导致内容丢失,希望大家帮我看看哪里出问题了,万分感谢!