转 C#多线程及控制线程数量，对for循环输出效率

转自：http://www.cnblogs.com/StupidsCat/archive/2012/12/07/2807503.html

添加控件

NumbericUpDown,重命名为createCount,

textbox重命名为:f_groundcode,

textbox重命名为:f_ticketno

button重命名为:btnCreate

richtextbox重命名为：txtResult

int threadCountTmp = 0;//任务线程分派数
private void btnCreate_Click(object sender, EventArgs e)
{
int seed = Convert.ToInt32(createCount.Value) % 10 == 0 ? Convert.ToInt32(createCount.Value) / 10 : Convert.ToInt32(createCount.Value) / 10 + 1;

for (int i = 0; i < seed; i++)
{
Thread threadTmp = new Thread(new ParameterizedThreadStart(TempOut));
threadTmp.Start(i);
threadCountTmp++;
Application.DoEvents();//响应窗口状态
while (true) { if (threadCountTmp < 10) break; }//推拉窗式控制多线程 线程数10
}
}
//分段后的数据发布给其它线程

public void TempOut(object o)
{
int tmp = Convert.ToInt32(o) * 10;
int i = tmp;
for (; i < (tmp + 10 <= createCount.Value ? tmp + 10 : createCount.Value); i++)
{
Thread thread = new Thread(new ParameterizedThreadStart(ResultOut));
thread.Start(i);
threadCount++;
while (true) { if (threadCount < 10) break; }//推拉窗式控制多线程   线程数10
}
threadCountTmp--;
}
delegate void TextTmp(object o);//声明委托
int threadCount = 0;//任务线程
//委托函数
public void ResultOut(object o)
{
if (!txtResult.InvokeRequired)
{
txtResult.Text = "\n" + f_groundcode.Text + "," + f_ticketno.Text + DateTime.Now.ToLongDateString().Replace("-", "") + GetZero(6 - o.ToString().Length) + o.ToString() + "," + DateTime.Now.ToLongDateString().Replace("-", "") + DateTime.Now.ToLongTimeString().Replace(":", "") + txtResult.Text;
}
else
{
TextTmp tmpDel = new TextTmp(ResultOut);
this.Invoke(tmpDel, o);
}
threadCount--;
}
//处理数字前面有多少个0
private string GetZero(int leng)
{
string result = "";
for (int i = 0; i < leng; i++)
{
result += "0";
}
return result;
}

运行效果图：