//开始游戏的时候发四张牌
private void btnStart_Click(object sender, EventArgs e)
{
lblInput.Text = "";
GetPlayingCareds(); //生成一副牌
Shuffle(); //洗牌
topCard = 0; //显示在窗体四张牌中扑克牌的编号(1-52)
int imageNum; //文件夹中扑克牌图片的编号（文件名）
string path;
//画第一张牌
topCard = topCard = 1;
pictureBox1.Visible = true;
//获得文件中某张牌并且知道是什么花色对应的编号计算公式：
//牌面花色(1、2、3、4)：要获得某张牌的的花色
//（牌面数字大小-1）*4：要获得的某张牌的前一个牌面大小如：要获得的牌是10，前一个牌面就是9
//牌面花色(1、2、3、4)+（牌面数字大小-1）*4
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;//文件图片编号
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox1.Image = Image.FromFile(path);
NumberA = Convert.ToInt32(PlayingCards[topCard].face);//牌面大小对应的数字大小
btnNumber1.Text = NumberA.ToString();
//画第二张牌
topCard = topCard + 1;
pictureBox2.Visible = true;
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox2.Image = Image.FromFile(path);
NumberB = Convert.ToInt32(PlayingCards[topCard].face);
btnNumber2.Text = NumberB.ToString();
//画第三张牌
topCard = topCard + 1;
pictureBox3.Visible = true;
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox3.Image = Image.FromFile(path);
NumberC = Convert.ToInt32(PlayingCards[topCard].face);
btnNumber3.Text = NumberC.ToString();
//画第四张牌
topCard = topCard + 1;
pictureBox4.Visible = true;
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox4.Image = Image.FromFile(path);
NumberD = Convert.ToInt32(PlayingCards[topCard].face);
btnNumber4.Text = NumberD.ToString();
//初始化界面控件
btnStart.Visible = false; //开始游戏
groupBox1.Visible = true; //计算表达式
groupBox2.Visible = true; //查看答案
groupBox3.Visible = true; //游戏规则
lblShowTime.Visible = true; //显示时间
timer1.Enabled = true; //启用时钟
beginTime = DateTime.Now;
}
//点击下一轮按钮
private void btnNext_Click(object sender, EventArgs e)
{
#region 点击下一轮按钮更新初始化数据
btnAdd.Enabled = true;
btnMinus.Enabled = true;
btnDivide.Enabled = true;
btnMulti.Enabled = true;
btnNumber1.Enabled = true;
btnNumber2.Enabled = true;
btnNumber3.Enabled = true;
btnNumber4.Enabled = true;
btnDelete.Enabled = true;
btnClear.Enabled = true;
btnLeft.Enabled = true;
btnRight.Enabled = true;
btnEnter.Enabled = true;
lblInput.Text = "";
txtAnswer.Text = "";
lblResult.Visible = false;
lblShowTime.Text = "";
timer1.Enabled = true;
beginTime = DateTime.Now;
#endregion
int imageNum;
string path;
//画第一张牌
if (topCard >= 52)
{
MessageBox.Show("恭喜你已算完整副牌，开始新的一副牌。");
topCard = 0;
Shuffle();//洗牌
}
topCard = topCard + 1;
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox1.Image = Image.FromFile(path);
NumberA = Convert.ToInt32(PlayingCards[topCard].face);
btnNumber1.Text = NumberA.ToString();
//画第二张牌
if (topCard >= 52)
{
MessageBox.Show("恭喜你已算完整副牌，开始新的一副牌。");
topCard = 0;
Shuffle();
}
topCard = topCard + 1;
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox2.Image = Image.FromFile(path);
NumberB = Convert.ToInt32(PlayingCards[topCard].face);
btnNumber2.Text = NumberB.ToString();
//画第三张牌
if (topCard >= 52)
{
MessageBox.Show("恭喜你已算完整副牌，开始新的一副牌。");
topCard = 0;
Shuffle();
}
topCard = topCard + 1;
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox3.Image = Image.FromFile(path);
NumberC = Convert.ToInt32(PlayingCards[topCard].face);
btnNumber3.Text = NumberC.ToString();
//画第四张牌
if (topCard >= 52)
{
MessageBox.Show("恭喜你已算完整副牌，开始新的一副牌。");
topCard = 0;
Shuffle();
}
topCard = topCard + 1;
imageNum = PlayingCards[topCard].suit + (PlayingCards[topCard].face - 1) * 4;
path = Directory.GetCurrentDirectory() + @"\images\" + imageNum.ToString() + ".bmp";
pictureBox4.Image = Image.FromFile(path);
NumberD = Convert.ToInt32(PlayingCards[topCard].face);
btnNumber4.Text = NumberD.ToString();
}