修复错误

src/Add-on/KJLImport.ts

@@ -447,7 +447,7 @@ function ParsePathOutlineAndHole(path: KJL_Path, edgeBandingAll: number[], drill
             edgeBandingAll.push(last);
     }
     //填充
-    if (drillData)
+    if (drillData?.drillSides)
     {
         let last = arrayLast(drillData.drillSides);
         for (let i = drillData.drillSides.length; i < ptsAll.length; i++)
@@ -476,13 +476,13 @@ function ParsePathOutlineAndHole(path: KJL_Path, edgeBandingAll: number[], drill
             ptsAll[jplus] = ptsAll[i];
             if (edgeBandingAll)
                 edgeBandingAll[jplus] = edgeBandingAll[i];
-            if (drillData.drillSides)
+            if (drillData?.drillSides)
                 drillData.drillSides[jplus] = drillData.drillSides[i];
         }
     ptsAll.length = j;
     if (edgeBandingAll)
         edgeBandingAll.length = j;
-    if (drillData.drillSides)
+    if (drillData?.drillSides)
         drillData.drillSides.length = j;;
 
     let polylines: Polyline[] = [];