diff --git a/medialist.go b/material.go
similarity index 94%
rename from medialist.go
rename to material.go
index d95917a..039e71a 100644
--- a/medialist.go
+++ b/material.go
@@ -46,13 +46,13 @@ func getMediaList(mediaType string) (jstr string) {
 	return
 }
 
-func url4NewsList() string {
+func url4MaterialList() string {
 	atk, _ := GetAccessToken()
 	u := fmt.Sprintf("https://api.weixin.qq.com/cgi-bin/material/batchget_material?access_token=%s", atk)
 	return u
 }
 
-func url4MediaCount() string {
+func url4MaterialCount() string {
 	atk, _ := GetAccessToken()
 	u := fmt.Sprintf("https://api.weixin.qq.com/cgi-bin/material/get_materialcount?access_token=%s", atk)
 	return u