拆分-bug

PDF Office/ViewModels/Dialog/HomePageToolsDialogs/HomePageSplitDialogViewModel.cs

@@ -232,10 +232,11 @@ namespace PDF_Office.ViewModels.Dialog.HomePageToolsDialogs
 
         private void split()
         {
+            FileNameIsCheck();
             if (splitModel.Mode == HomePageSplitDialogModel.SplitMode.CustomPageRange)
             {
                 HomePageEditHelper.GetPagerange(PageRangeSelectIndex, currentViewer, ref splitModel.PageRange, PageRangeText);
-                FileNameIsCheck();
+                
                 if (splitModel.PageRange == "")
                 {
                     Trace.WriteLine("输入不对");