小编Ara*_*ash的帖子

我有问题为什么我们应该使用return in get,如果不使用发生的事情？.plz看到下面的代码:

private int _NumberOfDoors= 4;
public int NumberOfDoors
{
   get
   {
      return _NumberOfDoors;
   }

我写了一些代码来移动国王在国际象棋比赛; 你能告诉我国王不动的代码问题在哪里？谢谢.

EDITED2:

public partial class Form1 : Form
{
    PictureBox[,] pic = new PictureBox[8, 8];

private void pictureBox34_Click(object sender, EventArgs e)
    {

if (pictureBox34.Image == chess9.Properties.Resources.siyahsah2)

{

f();
}
}

public void picarray()
{
        pic[0, 0] = pictureBox54;
        pic[0, 1] = pictureBox64;
        pic[0, 2] = pictureBox48;
        pic[0, 3] = pictureBox42;
        pic[0, 4] = pictureBox34;
        pic[0, 5] = pictureBox26;
        pic[0, 6] = pictureBox18;
        pic[0, 7] = pictureBox8;
        pic[1, 0] = pictureBox1;
        pic[1, 1] = pictureBox2;
        pic[1, 2] = pictureBox3;
        pic[1, …

我想知道如何定义向量变量以保存此代码在向量中的输出？

/*what should be here?*/=agent.GetInfoState().GetPositionInfo().GetCloseTeammateToTeammate(2);

GetcloseTeammateToTeammate 定义为:

const std::vector<Unum> & GetCloseTeammateToTeammate(Unum i) 
{   
  Assert(i > 0); return GetCloseTeammateToPlayer(i); }

我有这个代码例如:

string i = "100";

if(i[1]==0)
{
    MessageBox.Show("ok");
}

而且我认为我应该"好"但它不起作用.这是什么i[1]？

我在第一行评论中采用了这个错误,问题是什么？

private void pictureBox34_Click(object sender, EventArgs e)
{
    if (pictureBox34.Image == chess9.Properties.Resources.siyahsah2)
    {
        f();
    }
}

public void picarray()
{
    pic[0, 0] = pictureBox54;
    pic[0, 1] = pictureBox64;
    pic[0, 2] = pictureBox48;
    pic[0, 3] = pictureBox42;
    pic[0, 4] = pictureBox34;
    pic[0, 5] = pictureBox26;
    pic[0, 6] = pictureBox18;
    pic[0, 7] = pictureBox8;
    pic[1, 0] = pictureBox1;
    pic[1, 1] = pictureBox2;
    pic[1, 2] = pictureBox3;
    pic[1, 3] = pictureBox4;
    ...
}

public void f()
{
    // int i = 0, j …

在一个表中我希望有两列主键(如果两列中的每一列都重复,则避免插入值),而不是两列同时包含一个主键(如果两列都重复,则避免插入值)

例如 :

列1:A,B,C

列2:1,2,3

在这个表中,我不想插入(column1:a和column2:4)或(column1:d和column2:3)