摘要： 一：怎么动态增加TreePanel的子级 和怎么获得TreePanle树的值前台：（1）var store = App.TreePanel1.getStore(), node = store.getNodeById("Node1"); node.appendChild({ text : "The New Node", leaf : true })（2）var sm = App.TreePanel1.getSelectionModel(); selectedNode, parentNode; if (sm.hasSelection()) { selecte 阅读全文