c# - 编译错误 :A field initializer cannot reference the non-static field, 方法或属性

Question

这个问题在这里已经有了答案:





A field initializer cannot reference the nonstatic field, method, or property

(4 个回答)


7年前关闭。




当我编译下面的代码时，编译器给出错误:字段初始值设定项无法引用此代码中的非静态字段、方法或属性(有星号)

 KingPiece kingPiece = new KingPiece(***siyahsah1***,ChessColor.White);

谁能帮我？

 class PiecePosition
{

    public enum ChessColor
    {
        White,
        Black,
    }
    public class ChessPiece
    {

        private Image DisplayedImage;
        private ChessColor DisplayedColor;
        private Point CurrentSquare;
        public Point[] ValidMoves;
        public ChessPiece(Image image, ChessColor color)
        {
            DisplayedImage = image;
            DisplayedColor = color;
        }
    }

    public  class KingPiece : ChessPiece
    {



        public KingPiece(Image image, ChessColor color)
            : base(image, color)
        {


            ValidMoves[0] = new Point(0, -1);    //  Up 1
            ValidMoves[1] = new Point(1, -1);  //  Up 1, Right 1
            ValidMoves[2] = new Point(1, 0);     //  Right 1

            ValidMoves[7] = new Point(-1, -1);  //  Left 1, Up 1
        }

        System.Drawing.Bitmap siyahsah1 = chess6.Properties.Resources.siyahsah1;
        KingPiece kingPiece = new KingPiece(siyahsah1,ChessColor.White);


    }

}

Answer 1

您应该将该行移动到构造函数中:

kingPiece = new KingPiece(siyahsah1,ChessColor.White);

问题是您还没有类实例，编译器不喜欢这样。如果您只是将该行移动到构造函数中，它将起作用。

您仍然必须将该属性定义为私有(private)字段。你可以这样做:

private KingPiece kingPiece;

在第一行的当前位置执行此操作。最终结果将与您现在发出的完全一样，只是它会编译。