diff --git "a/04_\347\224\250\346\210\267\344\272\244\344\272\222/04_\347\224\250\346\210\267\344\272\244\344\272\222/Class1.cs" "b/04_\347\224\250\346\210\267\344\272\244\344\272\222/04_\347\224\250\346\210\267\344\272\244\344\272\222/Class1.cs"
index 06e421ac56b7fc7586f57d630bc889e2b7408524..76879474356f7291afa454d7dcd0e8dc9936f251 100644
--- "a/04_\347\224\250\346\210\267\344\272\244\344\272\222/04_\347\224\250\346\210\267\344\272\244\344\272\222/Class1.cs"
+++ "b/04_\347\224\250\346\210\267\344\272\244\344\272\222/04_\347\224\250\346\210\267\344\272\244\344\272\222/Class1.cs"
@@ -1,4 +1,4 @@
-using Autodesk.AutoCAD.ApplicationServices;
+using Autodesk.AutoCAD.ApplicationServices;
 using Autodesk.AutoCAD.EditorInput;
 using Autodesk.AutoCAD.Geometry;
 using Autodesk.AutoCAD.Runtime;
@@ -98,7 +98,7 @@ namespace _04_用户交互
                 {
                     ppr = ed.GetPoint("\n 指定下一点或[放弃(U)]", pointPre, new string[] { "U" });
                 }
-                ppr = ed.GetPoint("\n 指定下一点或 [放弃(U)]", pointPre, new string[] { "U" });
+                //ppr = ed.GetPoint("\n 指定下一点或 [放弃(U)]", pointPre, new string[] { "U" });此行需要注释掉
                 Point3d pointNext; // 用于接收下一点坐标
                 if (ppr.Status == PromptStatus.Cancel) return;
                 if (ppr.Status == PromptStatus.None) return;