用socket实现简单的文件传输

'发送端：
'By wgscd
Dim sendsocket As New Net.Sockets.Socket(Net.Sockets.AddressFamily.InterNetwork, Net.Sockets.SocketType.Stream, Net.Sockets.ProtocolType.Tcp)
'实例化socket
Dim ipendpiont As New Net.IPEndPoint(Net.IPAddress.Parse("127.0.0.1"), 8888) '建立终结点
'OpenFileDialog1.ShowDialog()
Dim fs As New IO.FileStream("c:wgscd.dat", IO.FileMode.OpenOrCreate, IO.FileAccess.Read) '要传输的文件
Dim fssize(fs.Length - 1) As Byte
Dim strread As New IO.BinaryReader(fs) '流处理要传输的文件
'fs.Read(fssize, 0, fssize.Length - 1)
strread.Read(fssize, 0, fssize.Length - 1)
sendsocket.Connect(ipendpiont) '连接远程计算机
sendsocket.Send(fssize) '发送文件
Label1.Text = fs.Length()
fs.Close()
sendsocket.Shutdown(Net.Sockets.SocketShutdown.Send)
'关闭发送连接
sendsocket.Close() '关闭本机socket
=======================================
接收端：
Dim receivesocket As New Net.Sockets.Socket(Net.Sockets.AddressFamily.InterNetwork,Net.Sockets.SocketType.Stream,Net.Sockets.ProtocolType.Tcp)
Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load
Dim hostipendpiont As New Net.IPEndPoint(Net.IPAddress.Parse("127.0.0.1"), 8888)
receivesocket.Bind(hostipendpiont)
'建立远程计算机的的socket
receivesocket.Listen(2) '监听socket