根据下面数组怎么生成三级联动菜单树？（考虑性能）

Question

一级Id为负数、parentId为空，二级parentId等于一级id，三级parentId等于二级id[{"name": "广东","Id": -1,"parentId": null},{"name": "湖北","Id": -2,"parentId": null},{"name": "广州","Id": 44,"parentId": -1},{"name": "武汉","Id": 58,"parentId": -2},{"name": "深圳","Id": 12,"parentId":-1 },{"name": "白云","Id": 741,"parentId": 44}]