【注释】右侧属性面板，预览箭头的样式有误 -- 修复

PDF Office/PDF Master/Class/PDFWindowController/PDFListView/CPDFKitExtensions/CPDFAnnotationExtensions/CPDFAnnotationModel.m

@@ -1202,7 +1202,7 @@
         NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
         switch (_annotationType) {
             case CAnnotationTypeArrow:
-                endLineStyle = [userDefaults integerForKey:CArrowNoteEndStyleKey];
+                endLineStyle = [userDefaults integerForKey:CArrowNoteEndStyleKey]?:CPDFLineStyleOpenArrow;
                 break;
             default:
                 break;