代码：

int m = 1;

private void button1_Click(object sender, EventArgs e)
{
int a1 = int.Parse(txta1.Text);
int a2 = int.Parse(txta2.Text);
int b1 = int.Parse(txtb1.Text);
int b2 = int.Parse(txtb2.Text);
int c1 = int.Parse(txtc1.Text);
int c2 = int.Parse(txtc2.Text);
if (a1 < 9)
{
txta1.Text = 0 + (a1 + 1).ToString();
}
else
{
if (m == 5)
{
if (a1 >= 14 && a1 <= a2 || a1 < 14)
{
txta1.Text = (a1 + 1).ToString();
}
else
{

txtb1.Text = (b1 + 1).ToString();
txtc1.Text = (c1 + 1).ToString();
txtjieju.Text += "第" + m + "局" + (a1 + 1).ToString() + ":" + txta2.Text + "\r" + "\n";
txtc2.Text = "0";
}
}
else
{
if (a1 >= 24 && a1 <= a2 || a1 < 24)
{
txta1.Text = (a1 + 1).ToString();
}
else
{
txtb1.Text = (b1 + 1).ToString();
txtc1.Text = (c1 + 1).ToString();
txtjieju.Text += "第" + m + "局" + (a1 + 1).ToString() + ":" + txta2.Text + "\r" + "\n";
txta1.Text = "00";
txta2.Text = "00";
txtc2.Text = "0";
txtm.Text = "第 " + (m + 1) + " 场";
m = m + 1;

}
}

}
if (txtb1.Text == "3")
{
txta1.Text = "00";
txta2.Text = "00";
txtb1.Text = "0";
txtb2.Text = "0";
txtc1.Text = "0";
txtc2.Text = "0";
m = 0;
txtm.Text = "第 " + (m + 1) + " 场";
txtjieju.Text += "第" + m + "局" + (a1 + 1).ToString() + ":" + txta2.Text + "\r" + "\n" + txtd1.Text + "胜";
}
}

private void txta1_TextChanged(object sender, EventArgs e)
{

}

private void button2_Click(object sender, EventArgs e)
{
int a1 = int.Parse(txta1.Text);
int a2 = int.Parse(txta2.Text);
int b1 = int.Parse(txtb1.Text);
int b2 = int.Parse(txtb2.Text);
int c1 = int.Parse(txtc1.Text);
int c2 = int.Parse(txtc2.Text);
if (a2 < 9)
{
txta2.Text = 0 + (a2 + 1).ToString();
}
else
{
if (m == 5)
{
if (a2 >= 14 && a2 <= a1 || a2 < 14)
{
txta2.Text = (a2 + 1).ToString();
}
else
{

txtb2.Text = (b2 + 1).ToString();
txtc2.Text = (c2 + 1).ToString();
txtjieju.Text += "第" + m + "局" + txta1.Text + ":" + (a2 + 1).ToString() + "\r" + "\n";
txta1.Text = "00";
txta2.Text = "00";
txtc1.Text = "0";
}
}
if (a2 >= 24 && a2 <= a1||a2<24)
{
txta2.Text = (a2 + 1).ToString();
}
else
{
txtb2.Text = (b2 + 1).ToString();
txtc2.Text = (c2 + 1).ToString();
txtjieju.Text += "第" + m + "局" + txta1.Text + ":" + (a2 + 1).ToString() + "\r" + "\n";
txta1.Text = "00";
txta2.Text = "00";
txtc1.Text = "0";
txtm.Text = "第 " + (m + 1) + " 场";
m = m + 1;
}

}
if (txtb2.Text == "3")
{
txta1.Text = "00";
txta2.Text = "00";
txtb1.Text = "0";
txtb2.Text = "0";
txtc1.Text = "0";
txtc2.Text = "0";
m = 0;
txtm.Text = "第 " + (m + 1) + " 场";
txtjieju.Text += "第" + m + "局" + txta1.Text + ":" + (a2 + 1).ToString() + "\r" + "\n" + txtd2.Text + "胜";
}
}

排球计分