diff --git a/MDM/Models/Recipe/Dto/EffectiveRecipeDto.cs b/MDM/Models/Recipe/Dto/EffectiveRecipeDto.cs
index 2426dff..894fecf 100644
--- a/MDM/Models/Recipe/Dto/EffectiveRecipeDto.cs
+++ b/MDM/Models/Recipe/Dto/EffectiveRecipeDto.cs
@@ -23,28 +23,28 @@ namespace MDM.Models.Recipe.Dto
         /// <summary>
         /// 产品,码 
         /// </summary>
-        public string Productcode { get; set; }
+        public string? Productcode { get; set; }
 
         /// <summary>
         /// 产品名称（原零件名称） 
         /// </summary>
 
-        public string ProductName { get; set; }
+        public string? ProductName { get; set; }
         /// <summary>
         /// 配方码（零件号） 
         /// </summary>
 
-        public string RecipeCode { get; set; }
+        public string? RecipeCode { get; set; }
 
         /// <summary>
         /// 版本号，如 V1.0 
         /// </summary>
-        public string Version { get; set; }
+        public string? Version { get; set; }
 
         /// <summary>
         /// 状态（0作废，1生效） 
         /// </summary>
-        public int Status { get; set; }
+        public int? Status { get; set; }