无聊写的一个winform的小窗口程序，主要实现窗口在关闭和打开时的特殊动态效果，原理主要是引用window API，因此，不止C#，对于C++，VB，J#都用很好的借鉴意义-Boring to write a winform small window program, the main window is closed and opened a special dynamic effects, the main principle is quoted window API, therefore