Support for the experimental syntax 'decorators-legacy' isn't currently

刚接触mobx，给我报个错，Support for the experimental syntax ‘decorators-legacy’ isn’t currently ，竟然不支持这个语法，后来查了资料解决了问题
第一步：

npm install @babel/plugin-proposal-decorators
npm install @babel/plugin-proposal-class-properties

第二步:
package.json中添加代码，（看注释）

    "plugins": [
    	//添加代码开始
      [
        "@babel/plugin-proposal-decorators",
        {
          "legacy":true
        }
      ],
      [
        "@babel/plugin-proposal-class-properties",
        {
          "loose":true
        }
      ],
	//添加代码结束
      [
        "import",
        {
          "libraryName": "antd",
          "style": "css"
        }
      ]
    ]

组件代码

// 歌手列表页面
import React , { Component } from 'react';
import { observable } from 'mobx';
import { observer } from 'mobx-react';

//注意装饰器位置
export default @observer class SingerPage extends Component {
    @observable isLoading = true;
    @observable LetterList = [];
    @observable singerList = [];

    componentDidMount(){
    }
	//省略逻辑代码....

    render(){
        return(
            <>
                {
                    this.props.isLoading
                    ? <Loading/>
                    : <SingerView singerList={ this.singerList } LetterList = { this.LetterList}   />
                }           
            </>
        )
    }
}

亲测可用