Stream.Read读不出内容 读出了长度?

Question

private void tsmi_Open_Click(object sender, EventArgs e)
        {
            Stream myStream;
            OpenFileDialog openFileDialog1 = new OpenFileDialog();
            openFileDialog1.InitialDirectory = "c:\\" ;
            openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
            openFileDialog1.FilterIndex = 2 ;
            openFileDialog1.RestoreDirectory = true ;
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                if ((myStream = openFileDialog1.OpenFile()) != null)
                {
                    byte[] bytes = new byte[myStream.Length];
                    int numBytesToRead = (int)myStream.Length;
                    string read = myStream.Read(bytes, 0, numBytesToRead).ToString();
                    RichTextBox1.Text = read.ToString();
                    myStream.Close();
                }
            }
        }Stream.Read读不出内容 读出了长度?  输出为 6 为什么?

Answer 1

string read = myStream.Read(bytes, 0, numBytesToRead).ToString(); 
这是获取了读到的字符长度，你读的东西在bytes里
myStream.Read(bytes, 0, numBytesToRead);
string read = System.Test.Encoding.Default.GetString(bytes);

Answer 2

 Stream myStream; 
            OpenFileDialog openFileDialog1 = new OpenFileDialog(); 
            openFileDialog1.InitialDirectory = "c:\\" ; 
            openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*"; 
            openFileDialog1.FilterIndex = 2 ; 
            openFileDialog1.RestoreDirectory = true ; 
            if (openFileDialog1.ShowDialog() == DialogResult.OK) 
            { 
                if ((myStream = openFileDialog1.OpenFile()) != null) 
                { 
StreamReader reader = new StreamReader(myStream);
                    
                    RichTextBox1.Text = reader.ReadToEnd();
                    myStream.Close(); 
reader.Close();
                } 
            }