[DllImport("User32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)] public static extern int MessageBox(IntPtr handle, String message, String title, int type); MessageBox(IntPtr.Zero, uri, "从配置文件读取DeepStream的IP:Port", 0);
原文：https://www.cnblogs.com/coolbear/p/9293756.html