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 else 29 { 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 }