表格树TreeGrid，无极限层表格树 实现拖拽 排序。功能很强大。还能实现其他一些高级功能，如：计算，复选框，批量选择删除节点等。高级功能例子里没有实现，你需要查看他的api来自己增加。-Form tree TreeGrid, without limit layer forms realize drag tree sort. Function is very powerful. Can realize a number of other advanced features, such as: