ztree api ztree节点上为什么没有添加节点的按钮?

ztree节点上为什么没有添加节点的按钮?单击节点树时,在onclick(E,treeid,treenode){var ztree=$fn.zTree.getZTreeObj(“sprTree”)va

ztree节点上为什么没有添加节点的按钮?

单击节点树时,在onclick(E,treeid,treenode){var ztree=$fn.zTree.getZTreeObj(“sprTree”)var newNode={名称:“newNode1”}newNode=treeObj.addNodes文件(treeNode,newNode)}