我正在嘗試學習Go語言，并且正在編寫一個簡單的回顯服務器。不過，我很難使它正常工作。func listen(server string) {    var buf []byte    listener, ok := net.Listen("tcp", server)    if ok != nil {        fmt.Fprintf(os.Stderr, "Could not listen on socket: %s\n", ok.String())        return    }    conn, ok := listener.Accept()    if ok != nil {        fmt.Fprintf(os.Stderr, "Could not accept connection on socket: %s\n", ok.String())        return    }    writelen, ok := conn.Write(strings.Bytes("Ready to receive\n"))    if ok != nil {        fmt.Fprintf(os.Stderr, "Could not write to socket: %s\n", ok.String())    } else {        fmt.Printf("Wrote %d bytes to socket\n", writelen)    }    for ;; {        readlen, ok := conn.Read(buf)        if ok != nil {            fmt.Fprintf(os.Stderr, "Error when reading from socket: %s\n", ok.String())            return        }        if readlen == 0 {            fmt.Printf("Connection closed by remote host\n")            return        }        fmt.Printf("Client at %s says '%s'\n", conn.RemoteAddr().String(), buf)    }}我從此函數獲得以下輸出：[nathan@ebisu ~/src/go/echo_server] ./6.out 1234Using port 1234Wrote 17 bytes to socketError when reading from socket: EOF這是我在客戶端上看到的：[nathan@ebisu ~] telnet 127.0.0.1 1234Trying 127.0.0.1...Connected to 127.0.0.1.Escape character is '^]'.Ready to receiveConnection closed by foreign host.任何幫助將不勝感激（或指向資源的指針；套接字API上的go文檔尚有待改進）。