还有个问题就是tree.loadNode这个方法第三次for循环之后脚本报错,这什么问题
miniui.js:11 Uncaught TypeError: Cannot read property '_id' of undefined
at o1000O.loo1l1 (miniui.js:11)
at o1000O.o1111 [as ol1ol1] (miniui.js:11)
at o1000O.o11O [as addRowCls] (miniui.js:11)
at o1000O.Ol100 [as addNodeCls] (miniui.js:11)
at o1000O.ooloO [as __OnBeforeLoadNode] (miniui.js:11)
at mini.DataTree.oO1l1 [as fire] (miniui.js:11)
at mini.DataTree.loadNode (miniui.js:11)
at o1000O.loadNode (miniui.js:11)
at Object.tree.on.async (SelectTreeWindow.jsp?_winid=w7829&_t=35651:147)
at o1000O.oO1l1 [as fire] (miniui.js:11)