CustomTreeCtrl

代码说明：

  一个很有用的TreeCtrl，有复选柜，可以自定义图标，展开节点时，可以更换图标。支持右键菜单增加删除节点(A very useful TreeCtrl, there are check counters, you can customize the icon, expand the node, you can replace the icon. Support right click menu to add delete node )