程序代码：

var znodes = [
    {"id": 1,"pId": null,"name": "父节点1","childs": [
        {"id": 11,"pId": 1,"name": "a-a","childs": [
            {"id": 12,"pId": 11,"name": "a-a-a","level": 2,"childs": [
                {"id": 101,"pId": 12,"name": "a-a-a-a"},
                {"id": 102,"pId": 12,"name": "a-a-a-b"}]}]}]},
    {"id": 2,"pId": null,"name": "父节点2","childs": [
         {"id": 21,"pId": 2,"name": "b-a"}]},
         {"id": 3,"pId": null,"name": "父节点3","childs": []}
        ];

function jsonview(jdata) {
            for (i = 0; i < jdata.length; i++) {
                console.log(jdata[i]['name'])
                if (jdata[i].hasOwnProperty('childs')  && jdata[i]['childs'].length > 0) {
                        jsonview(jdata[i]['childs'])}
                else {console.log('-----')}
               
            }
        };