diff --git a/weixin/app_sdk.go b/weixin/app_sdk.go
index 71f5610..7a518c0 100644
--- a/weixin/app_sdk.go
+++ b/weixin/app_sdk.go
@@ -1,11 +1,11 @@
 package weixin
 
-type AppSdk struct {
+type OpenSdk struct {
 	BaseSdk
 }
 
-func NewAppSdk(appid, secret string) *AppSdk {
-	return &AppSdk{
+func NewOpenSdk(appid, secret string) *OpenSdk {
+	return &OpenSdk{
 		BaseSdk{
 			appid:  appid,
 			secret: secret,
@@ -13,6 +13,6 @@ func NewAppSdk(appid, secret string) *AppSdk {
 	}
 }
 
-func (o *AppSdk) GetUserInfoByCode(code string) (*UserInfo, error) {
+func (o *OpenSdk) GetUserInfoByCode(code string) (*UserInfo, error) {
 	return o.getUserInfoByCode(code, true)
 }