C#根据文件类型获取系统图标

根据文件类型获取系统图标 #region APIs [DllImport("shell32.dll", EntryPoint = "ExtractIconA", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)] private static extern IntPtr ExtractIcon(int hInst, string lpszExeFileName, int nIconIndex); [DllImport("shell32.dll", CharSe