diff --git a/mymysql/mysql.go b/mymysql/mysql.go
index b4e244d..db34c6a 100644
--- a/mymysql/mysql.go
+++ b/mymysql/mysql.go
@@ -53,11 +53,11 @@ func Instance(key ...string) *gorm.DB {
 	return instance
 }
 
-func NewDefault(config *Config) (*gorm.DB, error) {
-	return New(DefaultKey, config)
+func InitDefault(config *Config) error {
+	return Init(DefaultKey, config)
 }
 
-func New(key string, config *Config) (*gorm.DB, error) {
+func Init(key string, config *Config) error {
 	var (
 		maxLifeTime, _ = time.ParseDuration(DefaultConfig.MaxLifeTime)
 		maxIdleTime, _ = time.ParseDuration(DefaultConfig.MaxIdleTime)
@@ -75,7 +75,7 @@ func New(key string, config *Config) (*gorm.DB, error) {
 	if config.MaxLifeTime != "" {
 		t, err := time.ParseDuration(config.MaxLifeTime)
 		if err != nil {
-			return nil, fmt.Errorf("parse MaxLifeTime err: %s\n", err)
+			return fmt.Errorf("parse MaxLifeTime err: %s\n", err)
 
 		}
 		maxLifeTime = t
@@ -84,7 +84,7 @@ func New(key string, config *Config) (*gorm.DB, error) {
 	if config.MaxIdleTime != "" {
 		t, err := time.ParseDuration(config.MaxIdleTime)
 		if err != nil {
-			return nil, fmt.Errorf("parse MaxIdleTime err: %s\n", err)
+			return fmt.Errorf("parse MaxIdleTime err: %s\n", err)
 		}
 		maxIdleTime = t
 	}
@@ -103,7 +103,7 @@ func New(key string, config *Config) (*gorm.DB, error) {
 	})
 
 	if err != nil {
-		return nil, fmt.Errorf("connect mysql err: %s", err)
+		return fmt.Errorf("connect mysql err: %s", err)
 	}
 	sqlDb, _ := db.DB()
 
@@ -113,7 +113,7 @@ func New(key string, config *Config) (*gorm.DB, error) {
 	sqlDb.SetConnMaxIdleTime(maxIdleTime)
 
 	instanceMap[key] = db
-	return db, nil
+	return nil
 }
 
 func DefaultGormLogger(level gormLogger.LogLevel) gormLogger.Interface {
diff --git a/mymysql/mysql_test.go b/mymysql/mysql_test.go
index 25a9e8c..9e4648f 100644
--- a/mymysql/mysql_test.go
+++ b/mymysql/mysql_test.go
@@ -6,8 +6,8 @@ import (
 )
 
 func TestMysql(t *testing.T) {
-	myDB, err := NewDefault(&Config{
-		Dsn:         "root:root@tcp(127.0.0.1:3306)/site?loc=Local&charset=utf8mb4&writeTimeout=3s&readTimeout=3s&timeout=2s&parseTime=true",
+	err := InitDefault(&Config{
+		Dsn:         "root:Tqa129126@tcp(119.29.187.200:3306)/site?loc=Local&charset=utf8mb4&writeTimeout=3s&readTimeout=3s&timeout=2s&parseTime=true",
 		MaxOpenConn: 16,
 		MaxIdleConn: 4,
 		MaxIdleTime: "5m",
@@ -20,10 +20,10 @@ func TestMysql(t *testing.T) {
 		return
 	}
 
-	defer myDB.Close()
+	defer CloseAll()
 
 	var res = make(map[string]interface{})
-	err = myDB.db.Table("image").Limit(1).Take(&res).Error
+	err = Instance().Table("image").Limit(1).Take(&res).Error
 	if err != nil {
 		fmt.Println(err)
 		return