diff --git a/dri/baidu/map.go b/dri/baidu/map.go
index 3dd611d..c5c372a 100644
--- a/dri/baidu/map.go
+++ b/dri/baidu/map.go
@@ -7,12 +7,14 @@ import (
 	"net/url"
 )
 
-type BaiduMap struct {
+type baiduMap struct {
 	Ak  string
 	Url string
 }
 
-func (that *BaiduMap) Init(Ak string) {
+var BaiDuMap = baiduMap{}
+
+func (that *baiduMap) Init(Ak string) {
 	//"ak=ZeT902EZvVgIoGVWEFK3osUm"
 	that.Ak = Ak
 	that.Url = "https://api.map.baidu.com/place/v2/suggestion?output=json" + "&ak=" + Ak
@@ -20,7 +22,7 @@ func (that *BaiduMap) Init(Ak string) {
 }
 
 // GetPosition  获取定位列表
-func (that *BaiduMap) GetPosition(name string, region string) (string, error) {
+func (that *baiduMap) GetPosition(name string, region string) (string, error) {
 
 	client := &http.Client{}
 	if region == "" {
@@ -50,9 +52,3 @@ func (that *BaiduMap) GetPosition(name string, region string) (string, error) {
 	return string(body), err
 
 }
-
-var DefaultBaiDuMap BaiduMap
-
-func init() {
-	DefaultBaiDuMap = BaiduMap{}
-}