Update 05.6.md

Updated the Redis example to match the latest from the chinese edition.

Author: LarryBattle

eBook/05.6.md

@@ -20,33 +20,34 @@ I forked the last one and fixed some bugs, and use it in my short URL service(2
 Let's see how to use the driver that I forked to operate database:
 
 	package main
-	
+
 	import (
-	    "github.com/astaxie/goredis"
-	    "fmt"
+		"github.com/astaxie/goredis"
+		"fmt"
 	)
-	
+
 	func main() {
-	    var client goredis.Client
-	    // string
-	    var client goredis.Client
-	    client.Set("a", []byte("hello"))
-	    val, _ := client.Get("a")
-	    fmt.Println(string(val))
-	    client.Del("a")
-	
-	    // list
-	
-	    var client goredis.Client
-	    vals := []string{"a", "b", "c", "d", "e"}
-	    for _, v := range vals {
-	        client.Rpush("l", []byte(v))
-	    }
-	    dbvals,_ := client.Lrange("l", 0, 4)
-	    for i, v := range dbvals {
-	        println(i,":",string(v))
-	    }
-	    client.Del("l")
+		var client goredis.Client
+		
+		// Set the default port in Redis
+		client.Addr = "127.0.0.1:6379"
+		
+		// string manipulation
+		client.Set("a", []byte("hello"))
+		val, _ := client.Get("a")
+		fmt.Println(string(val))
+		client.Del("a")
+
+		// list operation
+		vals := []string{"a", "b", "c", "d", "e"}
+		for _, v := range vals {
+			client.Rpush("l", []byte(v))
+		}
+		dbvals,_ := client.Lrange("l", 0, 4)
+		for i, v := range dbvals {
+			println(i,":",string(v))
+		}
+		client.Del("l")
 	}
 
 We can see that it's quite easy to operate redis in Go, and it has high performance. Its client commands are almost the same as redis built-in commands.
@@ -105,4 +106,4 @@ We can see that there is no big different to operate database between mgo and be
 ##Links
 - [Directory](preface.md)
 - Previous section: [Develop ORM based on beedb](05.5.md)
-- Next section: [Summary](05.7.md)
+- Next section: [Summary](05.7.md)