"检测到无法访问的代码"我已经查看了其他无法访问的代码,但我似乎无法修复我的问题,停下来

Question

我正在为学校做一个tictactoe项目,我似乎无法解决我无法访问的代码问题.我查找了其他无法访问的代码问题,但我不确定如何解决它,因为我不是很擅长这个.我知道这是一个警告,但当我开始我的程序时,它不会填写空白当我按他们.

    private void Movement(object sender, EventArgs e)
    {
        if (InvokeRequired)
        {
            this.Invoke(new Action<object, EventArgs>(Movement), new object[] { sender, e });
            return;
            UpdateData(sender); //This is where it points for unreachable
            var lbl = (Label)sender;
            lbl.Enabled = false;
            lbl.Text = currentPlayer.ToString();
            if (!CheckWin())
                NextTurn();

        }
    }
    private void UpdateData(object sender)
        {
            Label lbl = sender as Label;
            if (lbl == lbl00)
                GameData[0, 0] = currentPlayer;
            else if (lbl == lbl10)
                GameData[1, 0] = currentPlayer;
            else if (lbl == lbl20)
                GameData[2, 0] = currentPlayer;
            else if (lbl == lbl01)
                GameData[0,1] = currentPlayer;
            else if (lbl == lbl11)
                GameData[1, 1] = currentPlayer;
            else if (lbl == lbl21)
                GameData[2, 1] = currentPlayer;
            else if (lbl == lbl02)
                GameData[0, 2] = currentPlayer;
            else if (lbl == lbl12)
                GameData[1, 2] = currentPlayer;
            else if (lbl == lbl22)
                GameData[2, 2] = currentPlayer;
        }

Answer 1

因为你放了一个return后续this.Invoke(new Action<object, EventArgs>(Movement), new object[] { sender, e });行,所以其他行无法访问