ztree获取第一个子节点的id与所有节点ID的例子

var treeObj = $.fn.zTree.getZTreeObj("tree");
var node = treeObj.getNodeByTId("tree_10");

获取第一个就是：

var node = treeObj.getNodeByTId("tree_1");

var setting = {

data: {

simpleData: {

enable: true

}

},

view: {

showIcon: false

},

callback:{

onClick:function zTreeOnClick(event, treeId, treeNode){

alert(treeNode.tId + ", " + treeNode.name+", "+treeId);

var ids=[];

ids=getChildren(ids,treeNode);

}

},

check: {

enable: true,

autoCheckTrigger:false,

chkboxType:{ "Y":"ps", "N":"ps" }

}

};

//ids是一个数组 返回结果数组 treeNode是选中的节点

function getChildren(ids,treeNode){

ids.push(treeNode.id);

 if (treeNode.isParent){

for(var obj in treeNode.children){

getChildren(ids,treeNode.children[obj]);

}

}

 return ids;

}