实现翻书效果的源代码，功能完善，可以用鼠标拖拽或双击实现向前或向后翻页，可以设置该页是软页还是硬页，还可以实现页的跳转-Book realize the effect of the source code, function perfect, you can use the mouse to drag and drop or double-click the realization of forward or backward flip, you can set the page is a so