diff --git a/client/orm/migration/ddl.go b/client/orm/migration/ddl.go
index ab452b49..bcbfdd5a 100644
--- a/client/orm/migration/ddl.go
+++ b/client/orm/migration/ddl.go
@@ -274,7 +274,7 @@ func (m *Migration) GetSQL() (sql string) {
 			}
 
 			if len(m.Primary) > 0 {
-				sql += fmt.Sprintf(",\n PRIMARY KEY( ")
+				sql += ",\n PRIMARY KEY( "
 			}
 			for index, column := range m.Primary {
 				sql += fmt.Sprintf(" `%s`", column.Name)
@@ -284,7 +284,7 @@ func (m *Migration) GetSQL() (sql string) {
 
 			}
 			if len(m.Primary) > 0 {
-				sql += fmt.Sprintf(")")
+				sql += ")"
 			}
 
 			for _, unique := range m.Uniques {
@@ -295,7 +295,7 @@ func (m *Migration) GetSQL() (sql string) {
 						sql += ","
 					}
 				}
-				sql += fmt.Sprintf(")")
+				sql += ")"
 			}
 			for _, foreign := range m.Foreigns {
 				sql += fmt.Sprintf(",\n `%s` %s %s %s %s %s", foreign.Name, foreign.DataType, foreign.Unsign, foreign.Null, foreign.Inc, foreign.Default)
@@ -356,7 +356,7 @@ func (m *Migration) GetSQL() (sql string) {
 			}
 
 			if len(m.Primary) > 0 {
-				sql += fmt.Sprintf("\n DROP PRIMARY KEY,")
+				sql += "\n DROP PRIMARY KEY,"
 			}
 
 			for index, unique := range m.Uniques {
diff --git a/core/logs/alils/log_project.go b/core/logs/alils/log_project.go
index f993003e..63200ece 100755
--- a/core/logs/alils/log_project.go
+++ b/core/logs/alils/log_project.go
@@ -45,7 +45,7 @@ func (p *LogProject) ListLogStore() (storeNames []string, err error) {
 		"x-sls-bodyrawsize": "0",
 	}
 
-	uri := fmt.Sprintf("/logstores")
+	uri := "/logstores"
 	r, err := request(p, "GET", uri, h, nil)
 	if err != nil {
 		return
diff --git a/core/utils/mail.go b/core/utils/mail.go
index e685c449..0f1f95cc 100644
--- a/core/utils/mail.go
+++ b/core/utils/mail.go
@@ -120,7 +120,7 @@ func (e *Email) Bytes() ([]byte, error) {
 		}
 		// Create the body sections
 		if e.Text != "" {
-			header.Set("Content-Type", fmt.Sprintf("text/plain; charset=UTF-8"))
+			header.Set("Content-Type", "text/plain; charset=UTF-8")
 			header.Set("Content-Transfer-Encoding", "quoted-printable")
 			if _, err := subWriter.CreatePart(header); err != nil {
 				return nil, err
@@ -131,7 +131,7 @@ func (e *Email) Bytes() ([]byte, error) {
 			}
 		}
 		if e.HTML != "" {
-			header.Set("Content-Type", fmt.Sprintf("text/html; charset=UTF-8"))
+			header.Set("Content-Type", "text/html; charset=UTF-8")
 			header.Set("Content-Transfer-Encoding", "quoted-printable")
 			if _, err := subWriter.CreatePart(header); err != nil {
 				return nil, err