复制
1// 数据如下：
2const tree = [
3  {
4    name: "数据1",
5    id: 1,
6    children: [
7      {
8        name: "数据2",
9        id: 2,
10        children: [
11          {
12            name: "数据3",
13            id: 3,
14            children:
15              {
16                name: "数据4",
17                id: 4,
18                children: [],
19              },
20            ],
21          },
22        ],
23      },
24    ],
25  },
26];
27
28function findNodeById(tree, id) {
29  // ....
30}
31
32const res = findNodeById(tree, 3);
33// res 的结果为
34//           {
35//             name: "数据3",
36//             id: 3,
37//             children: [
38//               {
39//                 name: "数据4",
40//                 id: 4,
41//                 children: [],
42//               },
43//             ],
44//           }