c# 读取串口——如何全部读取

作者：灰鸟会灰

转自：http://blog.youkuaiyun.com/svtme/article/details/5291836

[c-sharp] view plaincopy

1. public byte[] Read()  
2.        {  
3.            byte[] inbuffer = null;  
4.            if (serialPort.IsOpen && serialPort.BytesToRead > 0)  
5.            {  
6.                try  
7.                {  
8.                    inbuffer = new byte[serialPort.BytesToRead];  
9.                    serialPort.Read(inbuffer, 0, serialPort.BytesToRead);  
10.                    string strRaad = ASCIIEncoding.ASCII.GetString(inbuffer, 0, inbuffer.Length);  
11.   
12.                     while (strRaad.Contains(serialPort.NewLine))  
13.                    {  
14.                        Thread.Sleep(800);  
15.                        if (serialPort.BytesToRead == 0)  
16.                            break;  
17.                        byte[] temp = inbuffer;  
18.                        byte[] inbuffer2 = new byte[serialPort.BytesToRead];  
19.   
20.                        serialPort.Read(inbuffer2, 0, serialPort.BytesToRead);  
21.                        inbuffer = new byte[inbuffer.Length + inbuffer2.Length];  
22.   
23.                        temp.CopyTo(inbuffer, 0);  
24.                        inbuffer2.CopyTo(inbuffer, temp.Length);  
25.                        strRaad = ASCIIEncoding.ASCII.GetString(inbuffer, 0, inbuffer.Length);  
26.                    }  
27.                }  
28.                catch  
29.                {  
30.                }   
31.            }  
32.            return inbuffer;  
33.        }