diff --git a/.gitignore b/.gitignore
index 67c9605..62a3257 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@
 *.out
 
 .vscode/
+.idea/
 Ginx
 config.json
 
diff --git a/main.go b/main.go
index d3030c3..f317f01 100644
--- a/main.go
+++ b/main.go
@@ -2,54 +2,52 @@ package main
 
 import (
 	"encoding/json"
-	"net/http"
-	"net/url"
-	"net/http/httputil"
-	"log"
 	"fmt"
 	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httputil"
+	"net/url"
 	"os"
 )
 
 type Config struct {
-	Server string `json:"server"`
+	Server   string   `json:"server"`
 	Upstream []string `json:"upstream"`
 }
 
-
 var loadBalancer = NewWeightedRR(RR_NGINX)
 
 type handle struct {
-    addrs []string
+	addrs []string
 }
 
 func (this *handle) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-    addr := loadBalancer.Next().(string)
-    remote, err := url.Parse("http://" + addr)
-    if err != nil {
-        panic(err)
-    }
-    proxy := httputil.NewSingleHostReverseProxy(remote)
-    proxy.ServeHTTP(w, r)
+	addr := loadBalancer.Next().(string)
+	remote, err := url.Parse("http://" + addr)
+	if err != nil {
+		panic(err) }
+	proxy := httputil.NewSingleHostReverseProxy(remote)
+	proxy.ServeHTTP(w, r)
 }
 
 func startServer(server string, upstream []string) {
-    //被代理的服务器host和port
-    h := &handle{}
-    h.addrs = upstream
+	//被代理的服务器host和port
+	h := &handle{}
+	h.addrs = upstream
 
-    w := 1
-    for _, e := range h.addrs {
-        loadBalancer.Add(e, w)
-        w++
-    }
-    err := http.ListenAndServe(server, h)
-    if err != nil {
-        log.Fatalln("ListenAndServe: ", err)
-    }
+	w := 1
+	for _, e := range h.addrs {
+		loadBalancer.Add(e, w)
+		w++
+	}
+	err := http.ListenAndServe(server, h)
+	if err != nil {
+		log.Fatalln("ListenAndServe: ", err)
+	}
 }
 
-func main() {
+func readConfig() Config {
 	file, err := ioutil.ReadFile("./config.json")
 	if err != nil {
 		fmt.Printf("File error: %v\n", err)
@@ -60,7 +58,10 @@ func main() {
 	json.Unmarshal(file, &config)
 	fmt.Printf("%v", config.Upstream)
 	fmt.Printf("%v", config.Server)
+	return config
+}
 
-    // startServer(*server, *upstream)
-    startServer(config.Server, config.Upstream)
-}
\ No newline at end of file
+func main() {
+	config := readConfig()
+	startServer(config.Server, config.Upstream)
+}