自己记录下string转stream和steam转string

string test = “Testing 1-2-3″;

// convert string to stream
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter( stream );
writer.Write( test );
writer.Flush();

// convert stream to string
stream.Position = 0;
StreamReader reader = new StreamReader( stream );
string text = reader.ReadToEnd();