diff --git a/README.md b/README.md
index 6f8e0e0..6c65994 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,4 @@ go get github.com/cowardmrx/go_aliyun_oss
     })
     fmt.Println(isSuccess)
 	
-
-
-
+#详细使用方法请参照oss_test.go文件中的示例
diff --git a/file.go b/file.go
index b3eb98b..72aebb3 100644
--- a/file.go
+++ b/file.go
@@ -24,7 +24,7 @@ type OssFileInterface interface {
 	GetFileType() *OssFile
 }
 
-// file type transform
+// FileTypeTransForm file type transform
 //@title 文件类型转换
 func (ossFile *OssFile) FileTypeTransForm() (*OssFile,error) {
 	var err error
@@ -100,7 +100,7 @@ func (ossFile *OssFile) FileTypeTransForm() (*OssFile,error) {
 	return ossFile,nil
 }
 
-//split file type and generate file name
+// GetFileType split file type and generate file name
 //截取文件类型
 func (ossFile *OssFile) GetFileType() *OssFile {
 
diff --git a/oss_client.go b/oss_client.go
index e0fdc1d..8dfba18 100644
--- a/oss_client.go
+++ b/oss_client.go
@@ -20,7 +20,7 @@ type AliOssConfigInterface interface {
 	GetAccessibleUrl() string
 }
 
-//check AliOssConfig value is exists
+// CheckConfig check AliOssConfig value is exists
 func (coon *AliOssConfig) CheckConfig() {
 	//check endPoint
 	if coon.EndPoint == "" || len(coon.EndPoint) <= 0 {
@@ -49,7 +49,7 @@ func (coon *AliOssConfig) CheckConfig() {
 
 }
 
-//en: create oss connect client
+// CreateOssConnect en: create oss connect client
 //创建阿里云oss 链接客户端
 func (coon *AliOssConfig) CreateOssConnect() *AliOssClient {
 	//config check
@@ -82,7 +82,7 @@ func (coon *AliOssConfig) CreateOssConnect() *AliOssClient {
 	}
 }
 
-//get oss accessible url
+// GetAccessibleUrl get oss accessible url
 //拼接阿里云oss可访问地址
 func (coon *AliOssConfig) GetAccessibleUrl() string {
 	var domain string
diff --git a/oss_operation.go b/oss_operation.go
index b461d88..64ddb1a 100644
--- a/oss_operation.go
+++ b/oss_operation.go
@@ -11,7 +11,7 @@ type AliOssClient struct {
 	Client *oss.Bucket
 }
 
-//推送文件到oss
+// Put 推送文件到oss
 //params:  ossDir string  `oss dir [要推送到的oss目录]`  example: test/20201121/
 //params:  file interface `upload file resource [文件资源]`
 //return string  `oss file accessible uri [可访问地址]`
@@ -52,7 +52,7 @@ func (client *AliOssClient) Put(ossDir string, file interface{},fileType string)
 	return client.Domain + "/" + ossPath
 }
 
-//校验文件是否已经存在
+// HasExists 校验文件是否已经存在
 //check file already exists in oss server
 //params: ossFilePath	string 	`file oss path [文件的oss的路径]`
 func (client *AliOssClient) HasExists(ossFilePath string) bool {
@@ -67,7 +67,7 @@ func (client *AliOssClient) HasExists(ossFilePath string) bool {
 	return isExists
 }
 
-//删除文件-单文件删除
+// Delete 删除文件-单文件删除
 //delete one file in oss
 //params ossPath string `file oss path [文件的oss路径]`
 //return bool
@@ -83,7 +83,7 @@ func (client *AliOssClient) Delete(ossFilePath string) bool {
 	return true
 }
 
-//删除文件-多文件删除
+// DeleteMore 删除文件-多文件删除
 //delete more file in oss
 //params ossPath []string `file oss path array [文件的oss路径数组]`
 //return bool
@@ -96,4 +96,27 @@ func (client *AliOssClient) DeleteMore(ossFilePath []string) bool {
 	}
 
 	return true
+}
+
+// GetTemporaryUrl 获取文件临时地址
+// path string 文件路径
+// expireInSecond int64 多久后过期 单位: 秒，默认 60
+func (client *AliOssClient) GetTemporaryUrl(path string,expireInSecond int64) string {
+
+	var expireTime int64
+
+	if expireInSecond <= 0 {
+		expireTime = 60
+	} else {
+		expireTime = expireInSecond
+	}
+
+	signUrl,err := client.Client.SignURL(path,oss.HTTPGet,expireTime)
+
+	if err != nil {
+		panic("generate sign url failed:" + err.Error())
+	}
+
+	return signUrl
+
 }
\ No newline at end of file
diff --git a/oss_test.go b/oss_test.go
index 42db67a..b7ccacb 100644
--- a/oss_test.go
+++ b/oss_test.go
@@ -94,3 +94,18 @@ func TestAliOssClient_DeleteMore(t *testing.T) {
 	fmt.Println(deleteRes)
 }
 
+func TestAliOssClient_GetTemporaryUrl(t *testing.T) {
+	ossConfig := &AliOssConfig{
+		EndPoint: "",
+		AccessKeyId: "",
+		AccessKeySecret: "",
+		BucketName: "",
+	}
+
+	client := ossConfig.CreateOssConnect()
+
+	singUrl := client.GetTemporaryUrl("logo/8497b913-2a79-58a1-984b-c25827f8212e.png",180)
+
+	fmt.Println(singUrl)
+}
+