iview 做tree树结构3级结构，绑定模拟接口数据

iview 做（Tree）树结构3级结构，模拟接口数据

先上效果图：

后台接口数据返回是这个格式：

 

data2:[

{

"line": { "lineId": "02", "lineName": "2号线", "lineSname": null, "lineEname": null, "stationSName": null, "stationEName": null, "stationNum": 0, "openDate": null, "bulidCompany": null, "manageNodeid": "01010200100000001", "paProtocolId": "02" },

"stationInfo": [

{

"stationInfo": {