Golang operation redis: write and read kV data

Code

package main
import (
	"fmt"
	"github.com/garyburd/redigo/redis" // introduce redis package 
)

func main() {
    
	// adopt go  towards redis  Write data and read data 
	//1.  link to redis
	conn, err := redis.Dial("tcp", "127.0.0.1:6379")
	if err != nil {
    
		fmt.Println("redis.Dial err=", err)
		return 
	}
	defer conn.Close() // close ..

	//2.  adopt go  towards redis Write data  string [key-val]
	_, err = conn.Do("Set", "name", "tomjerry Cat and cat ")
	if err != nil {
    
		fmt.Println("set err=", err)
		return 
	}

	//3.  adopt go  towards redis Reading data  string [key-val]

	r, err := redis.String(conn.Do("Get", "name"))
	if err != nil {
    
		fmt.Println("set err=", err)
		return 
	}

	// Because back  r yes  interface{}
	// because  name  The corresponding value is string , So we need to switch 
	//nameString := r.(string)

	fmt.Println(" operation ok ", r)
}

result