C# 多个线程一直跑着While(true) 在使用多线程的时候,开了多个线程一直在While(true),会造成CPU占用很高。这时候要在线程内加入一句Thread.Sleep(1),让他稍微睡一下。就不会消耗那么多CPU了。
代码:
1 Thread dataThread = new Thread(delegate() 2 { 3 while (threadFlag) 4 { 5 if (Port != null && Port.IsOpen) 6 { 7 length = Port.BytesToRead; 8 if (length > 0) 9 {10 11 bytes = new byte[length];12 Port.Read(bytes, 0, length);13 14 tcp.SendData(bytes);15 16 if (textBox.InvokeRequired)17 {18 19 textBox.Invoke(new Action<string>(s =>20 {21 textBox.AppendText(s + Environment.NewLine);22 textBox.SelectionStart = textBox.TextLength;23 textBox.ScrollToCaret();24 25 }), System.Text.Encoding.ASCII.GetString(bytes));26 27 }28 else29 {30 textBox.AppendText(System.Text.Encoding.ASCII.GetString(bytes) + Environment.NewLine);31 textBox.SelectionStart = textBox.TextLength;32 textBox.ScrollToCaret();33 34 }35 }36 37 }38 Thread.Sleep(1);39 }40 41 });42 dataThread.IsBackground = true;43 dataThread.Name = PortName;44 dataThread.Start();45 }46 47 }