diff --git a/src/Add-on/ExportData.tsx b/src/Add-on/ExportData.tsx
index f790a250d..5e5d697c2 100644
--- a/src/Add-on/ExportData.tsx
+++ b/src/Add-on/ExportData.tsx
@@ -21,6 +21,7 @@ import { Curve } from "../DatabaseServices/Entity/Curve";
 import { Entity } from "../DatabaseServices/Entity/Entity";
 import { EntityRef } from '../DatabaseServices/Entity/EntityRef';
 import { ExtrudeSolid } from "../DatabaseServices/Entity/Extrude";
+import { Line } from '../DatabaseServices/Entity/Line';
 import { Polyline } from "../DatabaseServices/Entity/Polyline";
 import { Region } from "../DatabaseServices/Entity/Region";
 import { HardwareCompositeEntity } from '../DatabaseServices/Hardware/HardwareCompositeEntity';
@@ -251,6 +252,16 @@ function Curve2Data(cu: Curve, AligenToWCS = true): Object
         cud.Center = cu.Center;
         cud.Radius = cu.Radius;
     }
+    else if (cu instanceof Line)//我们暂时转换为多段线,因为Sweep会使用这个
+    {
+        cud.Type = "Polyline";
+        let sp = cu.StartPoint;
+        let ep = cu.EndPoint;
+
+        cud.Pts = [sp, ep];
+        cud.Buls = [0, 0];
+        cud.IsClose = false;
+    }
     return cud;
 }