该对象帮助在对话框窗口大小改变时保持控件布局，更一般地，它可用于包含子窗口的窗口。它不是继承于CDialog，因此对任何窗口都适用。-A DlgResizeHelper object helps you keeping a layout while resizing a dialog or- more generally- a window with child windows.the class is not derived from CDialog (as most other solutions are) so it can be used with every window.