我想从“类别”状态更新“ treedata”状态

Question

 `this.state = {treeData: [{ title: 'Chicken', children: [{ title: 'Egg' }] },
    { title: 'Fish', children: [{ title: 'fingerline'}] }],
  categories: [{id: "1", parentId: null, name: null, Childs: [], …}

{id：“ 2”，parentId：null，名称：null，Childs：[]，…}]} `