[微信小程序]给data的对象的属性赋值

<view wx:for="{{leixing}}">          <button class="leixing_btn {{user_infor.lx_btn==item.divingtypeid ? 'lx_btn' : ''}}"  bindtap="lx_btn_click" data-name="{{item.divingtypeid}}" id="{{item.divingtypeid}}">{{item.name}}</button></view><input class='tj_input' type="text" placeholder="请输入姓名" bindinput ="user_nameInput" name="user_name" id="name" />//js    data: {    user_infor:{      user_name:'',      phone:'',      lx_btn: 0,    },  }     lx_btn_click: function (e) {    var lx_btn = 'user_infor.lx_btn'    var that = this;    if (that.data.lx_btn === e.target.dataset.name) {      return false;    } else {      that.setData({  [lx_btn]: e.target.dataset.name       })    }  },    phoneInput:function(e){    var phone = 'user_infor.phone'    var that = this    that.setData({      [phone]: e.detail.value    })  }//css.leixing_btn{  font-size: 23rpx;  display: flex;  text-align:center;  border:1px solid #eee;  border-radius:10rpx;  padding: 8rpx 20rpx 8rpx 20rpx;  background-color: white;  margin-left: 20rpx;}.lx_btn {  color: red;}