diff --git a/aliyun.go b/aliyun.go
index d8276f5..adc0ddf 100644
--- a/aliyun.go
+++ b/aliyun.go
@@ -5,23 +5,32 @@ import (
 	"io"
 )
 
-// AliYun 阿里云
-type AliYun struct {
+// AliYunConfig 阿里云配置
+type AliYunConfig struct {
 	AccessKeyId     string
 	AccessKeySecret string
 	Endpoint        string
 	BucketName      string
-	error           error       // 错误信息
-	client          *oss.Client // 驱动
-	bucket          *oss.Bucket // 存储空间
+}
+
+// AliYun 阿里云
+type AliYun struct {
+	AliYunConfig
+	error  error       // 错误信息
+	client *oss.Client // 驱动
+	bucket *oss.Bucket // 存储空间
 }
 
 // NewAliYun 初始化
 // https://help.aliyun.com/document_detail/32144.html
-func NewAliYun(accessKeyId, accessKeySecret, endpoint, bucketName string) *AliYun {
-	app := &AliYun{AccessKeyId: accessKeyId, AccessKeySecret: accessKeySecret, Endpoint: endpoint, BucketName: bucketName}
-	app.client, app.error = oss.New(endpoint, accessKeyId, accessKeySecret)
-	app.bucket, app.error = app.client.Bucket(bucketName)
+func NewAliYun(config *AliYunConfig) *AliYun {
+	app := &AliYun{}
+	app.AccessKeyId = config.AccessKeyId
+	app.AccessKeySecret = config.AccessKeySecret
+	app.Endpoint = config.Endpoint
+	app.BucketName = config.BucketName
+	app.client, app.error = oss.New(app.Endpoint, app.AccessKeyId, app.AccessKeySecret)
+	app.bucket, app.error = app.client.Bucket(app.BucketName)
 	return app
 }