拼图游戏：使用代码创建一定数量Static控件，然后通过StretchBlt函数把图片分块画到Static控件上，然后通过WM_LBUTTONDOWN和WM_LBUTTONUP事件控制Static控件的移动-Jigsaw puzzle: the use of code to create a certain number of Static Control, and then the picture StretchBlt function block painting on the Static