请教 react 的 list 渲染问题

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    export interface LeftBar {
        expanded?: boolean;
        name: string;
        children?: LeftBar[];
    }

  const LeftBars:LeftBar[] = [
    {
      name: '系统账号',
      children: [
        {
          name: '用户',
          children: [],
        },
        {
          name: '资源',
          children: [],
        },
      ],
    },
  ];
  const leftItems = LeftBars.map((lb) => {
    <li>{lb.name}</li>;
  });
  console.log('LeftBars', LeftBars);
  console.log('leftItems', leftItems);

children

name

leftbar

leftbars

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