index.js代码如下:
var app = getApp()
Page({
data: {
index: 0,
},
jishu: function () {
var that = this;
this.setData({ index: that.data.index + 1 })
qingling: function() {
var that = this;
this.setDada({ index: that.dada.index=0})
}
}
})
index.wxml代码如下:
{{index+1}}
清零
计数
请问为什么会出错?加上了清零之后为什么会运行不了?