Program MyProgram;

MyProgram = new Program();

string[] namearr = new string[4] ;

for (MyProgram.j = 0; MyProgram.j< namearr.Length; MyProgram.j++)

{

Console.WriteLine("姓名：", namearr[MyProgram.j]);

}

int[] scorearr = new int[4];

for (MyProgram.i = 0; MyProgram.i < scorearr.Length; MyProgram.i++)

{

Console.WriteLine("成績：", scorearr[MyProgram.i]);

}

MyProgram.Setnamearr(namearr);

MyProgram.Class = "09地信2";

MyProgram.Setscorearr(scorearr);

MyProgram.Object = "英語";

Console.WriteLine("班級：",MyProgram.Class);

Console.WriteLine("科目：", MyProgram.Object);

Console.ReadLine();//除錯結果檢視，輸入任意值退出

}

改了這段程式碼就行了