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c# - 如何在命令的 for 循环中使用变量？（C＃）

问题描述

所以我有一个按钮矩阵，从a1f到a10f，从a到j，所以a1f在左上角，j10在右下角。

我想要这样的事情：

for (i = 1; i < 11; i++)
  {
      a{i}f.BackgroundImage = Properties.Resources._1mal2_1_Rebellion;
      b{i}f.BackgroundImage = Properties.Resources._1mal2_2_Rebellion;
      a{i}f.Enabled = false;
      a{i}f.Tag = "playerShip";
      b{i}f.Enabled = false;
      b{i}f.Tag = "playerShip";
  }

所以第一个循环是：

a1f.BackgroundImage = Properties.Resources._1mal2_1_Rebellion;
b1f.BackgroundImage = Properties.Resources._1mal2_2_Rebellion;
a1f.Enabled = false;
a1f.Tag = "playerShip";
b1f.Enabled = false;
b1f.Tag = "playerShip";

第二个是：

a2f.BackgroundImage = Properties.Resources._1mal2_1_Rebellion;
b2f.BackgroundImage = Properties.Resources._1mal2_2_Rebellion;
a2f.Enabled = false;
a2f.Tag = "playerShip";
b2f.Enabled = false;
b2f.Tag = "playerShip";

等等..

a{i}f 或 a[i]f 不起作用。

标签： c#for-loopvariables

解决方案

如果您无法迭代控件，则可以将它们存储在临时数组中。

但是您可能会更好地通过生成控件来做。这可能是改进的下一个层次。现在，你可以试试这个：

例如：

// create arrays which contains the controls.
var aShips = new [] { a1f, a2f, a3f, a4f, a5f, a6f, a7f, a8f, a9f, a10f };
var bShips = new [] { b1f, b2f, b3f, b4f, b5f, b6f, b7f, b8f, b9f, b10f };

// notice the 0  and the < 10, because arrays are zero-indexed
for (i = 0; i < 10; i++)
{
    // now you can access them via the array. 
    aShips[i].BackgroundImage = Properties.Resources._1mal2_1_Rebellion;
    aShips[i].Enabled = false;
    aShips[i].Tag = "playerShip";

    bShips[i].BackgroundImage = Properties.Resources._1mal2_2_Rebellion;
    bShips[i].Enabled = false;
    bShips[i].Tag = "playerShip";
}

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