Question

这就是我尝试实现PictureBox数组的方法：

    PictureBox[] column0 = new PictureBox[6];
    PictureBox[] column1 = new PictureBox[6];
    PictureBox[] column2 = new PictureBox[6];
    PictureBox[] column3 = new PictureBox[6];
    PictureBox[] column4 = new PictureBox[6];
    PictureBox[] column5 = new PictureBox[6];
    PictureBox[] column6 = new PictureBox[6];

    PictureBox[][] columns = 
            new PictureBox[][] 
            { column0, column1, column2, column3, column4, column5, column6 };

当我尝试制作数组数组时，我收到此错误：

字段初始值设定项无法引用非静态字段方法或属性“Connect_Four_Server.Server.column0”

和column1，column2等的相同错误

在这种情况下如何正确地声明数组数组？

Answer 1

上述声明本身没有任何问题，但如果要在类中声明字段，则无法使用它。如错误所述，字段初始值设定项（在您的情况下为columns）无法引用其他非静态字段（在您的情况下为column0，column1 ...）。

您可以采取两种方法：

要么不声明中间字段并将其全部组合在一起（除非您实际需要直接引用columnX，否则最好）：

PictureBox[][] columns =
        new PictureBox[][] 
        { 
            new PictureBox[6], 
            new PictureBox[6], 
            new PictureBox[6], 
            new PictureBox[6], 
            new PictureBox[6], 
            new PictureBox[6], 
            new PictureBox[6] 
        };

或者将columns的初始化放入构造函数中：

PictureBox[] column0 = new PictureBox[6];
PictureBox[] column1 = new PictureBox[6];
PictureBox[] column2 = new PictureBox[6];
PictureBox[] column3 = new PictureBox[6];
PictureBox[] column4 = new PictureBox[6];
PictureBox[] column5 = new PictureBox[6];
PictureBox[] column6 = new PictureBox[6];

PictureBox[][] columns;

public Server()
{
    columns = new PictureBox[][] { column0, column1, column2, column3, column4, column5, column6 };
}

创建PictureBox类型的数组数组

1 个答案: