读写字节流的两个基本接口定义如下：
type Reader interface { Read(p []byte) (n int, err error) } type Writer interface { Write(p []byte) (n int, err error) }net.Conn这个接口也定义了上述两个函数，因此即是io.Reader接口也是io.Writer接口。
下面的代码利用net.Conn来执行两条redis客户端操作：
127.0.0.1:6380> set key 75 OK 127.0.0.1:6380> get key "75" package main import ( "fmt" "io" "net" ) func exec(wr io.Writer, rd io.Reader, cmd string) (string, error) { var err error _, err = wr.Write([]byte(cmd)) if err != nil { return "", err } var p []byte = make([]byte, 1024, 1024) _, err = rd.Read(p) if err != nil && err != io.EOF { return "", err } return string(p), nil } func main() { var conn net.Conn var err error conn, err = net.Dial("tcp", "127.0.0.1:6380") if err != nil { fmt.Printf("err=%v\n", err) return } var reply string //set key 75 reply, err = exec(conn, conn, "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$2\r\n75\r\n") fmt.Printf("set key 75's reply=%s err=%v\n", reply, err) //get key reply, err = exec(conn, conn, "*2\r\n$3\r\nGET\r\n$3\r\nkey\r\n") fmt.Printf("get key's reply=%s err=%v\n", reply, err) }输出：
set key 75's reply=+OK err=<nil> get key's reply=$2 75 err=<nil>如果需要加入缓冲区请见另外一篇《Go语言：带有缓冲区的字节流读写（bufio.Reader/bufio.Writer）的示例之redis读写》
Redis文本协议详见《Redis Protocol specification》
