(C#)DataGrid实现自定义分页，鼠标移至变色，删除确认、可编辑，可删除-(C#) DataGrid realize definition tabs, mouse moved to change, delete confirmation, edit, deletion

初学者api代码c语言窗口和大的编辑框，像记事本的代码-Beginners api code c language window and edit box, like Notepad code