diff --git a/base.go b/base.go
index f12bd75..1c50bf1 100644
--- a/base.go
+++ b/base.go
@@ -27,7 +27,7 @@ func (b *BaseDao) Create(dbInstance *gorm.DB, table string, data interface{}) er
 //
 // Date : 8:12 下午 2021/8/8
 func (b *BaseDao) Update(dbInstance *gorm.DB, table string, updateDate interface{}, optionFuncList ...SetOption) (int64, error) {
-	b.setTxCondition(dbInstance, table, optionFuncList...)
+	dbInstance = b.setTxCondition(dbInstance, table, optionFuncList...)
 	r := dbInstance.Updates(updateDate)
 	return r.RowsAffected, r.Error
 }
@@ -38,7 +38,7 @@ func (b *BaseDao) Update(dbInstance *gorm.DB, table string, updateDate interface
 //
 // Date : 8:14 下午 2021/8/8
 func (b *BaseDao) List(dbInstance *gorm.DB, table string, result interface{}, optionFuncList ...SetOption) error {
-	b.setTxCondition(dbInstance, table, optionFuncList...)
+	dbInstance = b.setTxCondition(dbInstance, table, optionFuncList...)
 	return dbInstance.Find(result).Error
 }
 
@@ -48,7 +48,7 @@ func (b *BaseDao) List(dbInstance *gorm.DB, table string, result interface{}, op
 //
 // Date : 8:25 下午 2021/8/8
 func (b *BaseDao) Detail(dbInstance *gorm.DB, table string, result interface{}, optionFuncList ...SetOption) error {
-	b.setTxCondition(dbInstance, table, optionFuncList...)
+	dbInstance = b.setTxCondition(dbInstance, table, optionFuncList...)
 	return dbInstance.First(result).Error
 }
 
@@ -58,7 +58,7 @@ func (b *BaseDao) Detail(dbInstance *gorm.DB, table string, result interface{},
 //
 // Date : 8:25 下午 2021/8/8
 func (b *BaseDao) Count(dbInstance *gorm.DB, table string, optionFuncList ...SetOption) (int64, error) {
-	b.setTxCondition(dbInstance, table, optionFuncList...)
+	dbInstance = b.setTxCondition(dbInstance, table, optionFuncList...)
 	var cnt int64
 	return cnt, dbInstance.Table(table).Count(&cnt).Error
 }
@@ -95,9 +95,9 @@ func (b *BaseDao) Rollback(db *gorm.DB) error {
 // Author : go_developer@163.com<白茶清欢>
 //
 // Date : 17:38 2022/5/15
-func (b *BaseDao) setTxCondition(tx *gorm.DB, table string, optionFuncList ...SetOption) {
+func (b *BaseDao) setTxCondition(tx *gorm.DB, table string, optionFuncList ...SetOption) *gorm.DB {
 	// 指定查询的表
-	tx.Table(table)
+	tx = tx.Table(table)
 
 	// 构建查询条件
 	o := &Option{}
@@ -107,54 +107,55 @@ func (b *BaseDao) setTxCondition(tx *gorm.DB, table string, optionFuncList ...Se
 
 	// 设置where条件
 	if nil != o.Where && len(o.Where) > 0 {
-		tx.Where(o.Where)
+		tx = tx.Where(o.Where)
 	}
 
 	// 设置 limit offset
 	if o.Limit > 0 {
-		tx.Limit(o.Limit)
+		tx = tx.Limit(o.Limit)
 	}
 	if o.Offset >= 0 {
-		tx.Offset(o.Offset)
+		tx = tx.Offset(o.Offset)
 	}
 
 	// in 语句
 	if nil != o.In {
-		tx.Where(o.In)
+		tx = tx.Where(o.In)
 	}
 
 	// not in 语句
 	if nil != o.NotIn {
 		for field, value := range o.NotIn {
-			tx.Where(field+" NOT IN ? ", value)
+			tx = tx.Where(field+" NOT IN ? ", value)
 		}
 	}
 
 	// like 语句
 	if nil != o.Like {
 		for field, value := range o.Like {
-			tx.Where(field+" LIKE ? ", "%"+value+"%")
+			tx = tx.Where(field+" LIKE ? ", "%"+value+"%")
 		}
 	}
 
 	// NOT LIKE 语句
 	if nil != o.NotLike {
 		for field, value := range o.NotLike {
-			tx.Where(field+" NOT LIKE ? ", "%"+value+"%")
+			tx = tx.Where(field+" NOT LIKE ? ", "%"+value+"%")
 		}
 	}
 
 	// >=
 	if nil != o.Start {
 		for field, value := range o.Start {
-			tx.Where(field+" >= ?", value)
+			tx = tx.Where(field+" >= ?", value)
 		}
 	}
 
 	// <
 	if nil != o.End {
 		for field, value := range o.End {
-			tx.Where(field+" < ?", value)
+			tx = tx.Where(field+" < ?", value)
 		}
 	}
+	return tx
 }