var root = new Ext.tree.TreeNode({ text: '根节点', expanded: true }); tree.setRootNode(root); var nodes = {}; nodes.children = mydata;/*TreeGrid的json数据[{……},{……}]*/ function appendChild(node, o) { if (o.children != null && o.children.length > 0) { for (var a = 0; a < o.children.length; a++) { var n = new Ext.tree.TreeNode({ task:o.children[a].task, duration:o.children[a].duration, user:o.children[a].user, iconCls:o.children[a].iconCls }); node.appendChild(n); appendChild(n, o.children[a]); } } } appendChild(root, nodes);