微信小程序 页面值Data 赋值取值 setData

var arr = ['1.jpg', '2.jpg'];
var that = {};
Page({

data: {
photoList: arr,
},

onLoad: function (options) {
that = this;
},

onShow: function () {
// 设置页面data值
that.setData({
photoList:['av.jpg']
})

// 获取页面data值
console.log('photoList',that.data.photoList)
},

onReady: function () { },
});