diff --git a/src/DatabaseServices/Template/Param/TemplateParam.ts b/src/DatabaseServices/Template/Param/TemplateParam.ts
index b1a679422..15e9bc26d 100644
--- a/src/DatabaseServices/Template/Param/TemplateParam.ts
+++ b/src/DatabaseServices/Template/Param/TemplateParam.ts
@@ -123,7 +123,7 @@ export class TemplateParam
             catch (error)
             {
                 console.log("更新失败:", error);
-                return;
+                return this.value as number;
             }
         }
         else
diff --git a/src/DatabaseServices/Template/TemplateRecord.ts b/src/DatabaseServices/Template/TemplateRecord.ts
index 25f969dc1..0b85f0cfd 100644
--- a/src/DatabaseServices/Template/TemplateRecord.ts
+++ b/src/DatabaseServices/Template/TemplateRecord.ts
@@ -269,9 +269,12 @@ export class TemplateRecord extends SymbolTableRecord
             this._CacheParamVars["W"] = this._CacheSpaceSize.y;
             this._CacheParamVars["H"] = this._CacheSpaceSize.z;
 
-            this._CacheSpaceSize.x = this.LParam.EvalUpdate(this._CacheParamVars, paramMap, evaled, false);
-            this._CacheSpaceSize.y = this.WParam.EvalUpdate(this._CacheParamVars, paramMap, evaled, false);
-            this._CacheSpaceSize.z = this.HParam.EvalUpdate(this._CacheParamVars, paramMap, evaled, false);
+            if (this.LParam.expr)
+                this._CacheSpaceSize.x = this.LParam.EvalUpdate(this._CacheParamVars, paramMap, evaled, false);
+            if (this.WParam.expr)
+                this._CacheSpaceSize.y = this.WParam.EvalUpdate(this._CacheParamVars, paramMap, evaled, false);
+            if (this.HParam.expr)
+                this._CacheSpaceSize.z = this.HParam.EvalUpdate(this._CacheParamVars, paramMap, evaled, false);
 
             //更新LWH(通过定位空间)
             this.LParam.UpdateParam(this._CacheSpaceSize.x);