我有一个用C++编写的DLL,其中包含导出的函数,该函数具有用作回调函数的函数指针。//C++DllExportunsignedintDllFunctionPointer(unsignedinti,unsignedint(*TimesThree)(unsignedintnumber)){returnTimesThree(i);}我有一个CSharp应用程序,我想用它来调用DLL函数。//C#publicunsafedelegateSystem.UInt32CallBack(System.UInt32number);classProgram{[DllImport("SimpleDLL.d