【IVIEW】远程filterRemote 获取不到this data里定义this

解决：在data定义taht指向this，然后再filterRemote中用taht代理this

data() {
    const that = this;
    return {
   {
     title: '基站类型',
     key: 'fd_USERLABEL',
     align: 'center',
     minWidth: 130,
     filters: [
     {
       label: '5G',
       value: '5G',
     },
    {
       label: '4G',
       value: '4G',
     },
    {
      label: '3G',
      value: '3G',
    },
  ],
    filterMultiple: false,
    filterRemote(value) {
      that.oldData.internetl = value[0]; // 代替this
      that.init();
    },
     }
  }