字符串与流如何转换？
这个只能转英文，转汉字不行。
                                    string   s= "abc ";

byte[]   byteData   =   Encoding.ASCII.GetBytes(s);
Stream   Astream=new   MemoryStream();  
Astream.Write(byteData,0,byteData.Length);
Astream.Position   =   0;

byte[]   bytes   =   new   byte[1024];
int   numBytesToRead   =   (int)   Astream.Length;
int   numBytesRead   =   0;
while   (numBytesToRead   >   0)  
{
int   n   =   Astream.Read(bytes,   numBytesRead,   numBytesToRead);
if   (n==0)
break;
numBytesRead   +=   n;
numBytesToRead   -=   n;
}
Astream.Close();


string   b=Encoding.ASCII.GetString(bytes,0,numBytesRead);

------解决方案--------------------
没细看代码，不过我觉得，不应该用Encoding.ASCII吧
改Encoding.Unicode试下~
------解决方案--------------------
try

byte[] byteData = Encoding.GetEncoding( "GB2312 ").GetBytes(s);


string b = Encoding.GetEncoding( "GB2312 ").GetString(bytes, 0, numBytesRead);