(C# Forms) 刽子手游戏“argumentoutofrange”

Question

当我试图显示下划线时，我试图制作的刽子手游戏在 for 循环中抛出“ArgumentOutOfRangeException”。我尝试重写代码，但没有任何效果。            List<Label> underline;            int left = 300;            int top = 275;            for (int i = 0; i < data.solution.Length; i++) //data is the object that contains the word that is the solution            {                underline = new List<Label>();                underline[i].Parent = this;                underline[i].Text = "_";                underline[i].Size = new Size(35, 35);                underline[i].Location = new Point(left, top);                left += 30;                underline[i].Font = new Font(new FontFamily("Microsoft Sans Serif"), 20, FontStyle.Bold);            }我不明白这有什么问题。当我点击新游戏时它会立即抛出它。

Answer 1

首先不要为 for 循环中的每次迭代创建一个新列表，而是在循环之外创建它。其次，您必须Label在列表中添加一个新实例，然后才能通过它的索引访问它：

List<Label> underline = new List<Label>();

int left = 300;

int top = 275;

for (int i = 0; i < data.solution.Length; i++) //data is the object that contains the word that is the solution

{

    underline.Add(new Label());

    underline[i].Parent = this;

    underline[i].Text = "_";

    underline[i].Size = new Size(35, 35);

    underline[i].Location = new Point(left, top);

    left += 30;

    underline[i].Font = new Font(new FontFamily("Microsoft Sans Serif"), 20, FontStyle.Bold);

}