diff --git a/backend/my_work/models/def.go b/backend/my_work/models/util.go
similarity index 99%
rename from backend/my_work/models/def.go
rename to backend/my_work/models/util.go
index f3e9e35..1b71ec9 100644
--- a/backend/my_work/models/def.go
+++ b/backend/my_work/models/util.go
@@ -51,14 +51,10 @@ func Md5Str(str string) string {
 	return hashString2
 }
 
-
-
 func IsExpired(expireTime time.Time) bool {
 	return expireTime.Before(time.Now())
 }
 
-
-
 // 判断邮箱是否合法
 func IsEmailValid(email string) bool {
 	// 正则表达式（覆盖 99% 常见邮箱格式）
diff --git a/backend/my_work/models/warehouse.go b/backend/my_work/models/warehouse.go
index f16bc91..2640e7f 100644
--- a/backend/my_work/models/warehouse.go
+++ b/backend/my_work/models/warehouse.go
@@ -1,3 +1 @@
 package models
-
-// 仓库模块所有结构定义在 routers/apiWarehouse.go