您可以使用以下调用来加载/卸载库:

You can use these calls to load/unload libraries:

[DllImport("kernel32.dll")]
protected internal static extern IntPtr LoadLibrary(string dllToLoad);

[DllImport("kernel32.dll")]
protected internal static extern bool FreeLibrary(IntPtr hModule);

也是有用的:

And also useful:

[DllImport("kernel32.dll")]
private static extern IntPtr GetProcAddress(IntPtr hModule, string procedureName);