新手问下setdata问题？

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新手问下setdata问题？The novice asks about setdata?

Page({  onLoad() {        var that = this;        wx.request({          url: 'https://****', //仅为示例，并非真实的接口地址          data: {            x: '',            y: ''          },          header: {            'content-type': 'application/json' // 默认值          },          success (res) {            console.log(res.data)            this.setdata({motto:'测试赋值'})     //报错了            //that.setdata({motto:'测试赋值'})  //报错了          }        })  }})这两个语句都报错了，提示“this.setData is not a function”， 我用this.setdata和that.setdata都不行，新手求助，谢谢！！

Page({  onLoad() { var that = this; wx.request ({URL: 'HTTPS: / / * *', / / for example only, not real interface address, data: {X: ', Y:'}, header: {content type ':'application / JSON' / / default value}, success (res) {console.log ( res.data )this.setdata ({motto: 'test assignment'}) / / error reported// that.setdata ({motto: 'test assignment'}) / / error})}) both statements report errors, indicating that“ this.setData Is not a function " this.setdata and that.setdata No way, novice help, thank you! ！

回答：

that.setData({motto:'测试赋值'})