我有这个错误:错误2可访问性不一致:返回类型'johny.Form1.CoOrds'比方法'johny.Form1.toto()更难访问

Question

class CoOrds
{
    public int x, y;

    public CoOrds() {
        x = 0;
        y = 0;
    }

    public CoOrds(int x, int y) {
        this.x = x;
        this.y = y;
    }
}

public CoOrds toto() {
    CoOrds B = new CoOrds(3, 2);
    return B;
}

private void result_Click(object sender, EventArgs e) {
    l6.Text = "";
    CoOrds D = new CoOrds();
    D = toto();
    l6.Text = "(" + D.x + "," + D.y + ")";
}

我收到以下错误:

Error 2 Inconsistent accessibility: return type 'johny.Form1.CoOrds' is less accessible than method 'johny.Form1.toto()

Answer 1

由于您的CoOrds类嵌套在其中Form1,因此默认情况下private(即仅在Form1类中使用).最简单的解决方案就是CoOrds上课public.

public class CoOrds{ 

public int x, y; // ...

另一种选择是简单地取消嵌套CoOrds类,即Form1完全将类的声明移到类之外.