vc6.0编译运行，实现列表CListctrl的拖拽功能-vc6.0 compiler running list CListctrl achieve the drawing functions

列表框，可以用拖动的方法改变ListCtrl中的数据排列顺序-List box, drag the method can be used to change the data in the ListCtrl order

一个可以拖拽的ListControl，可以单个、多个拖拽，并当鼠标移到边框时，自动滚动列表-One can drag the ListControl, can be single, multiple drag and drop, and when the mouse moved to the border, the auto-scroll through the list