Merge pull request '教程分析：pdf页面展示修改' (#119) from baigl into main

Reviewed-on: #119

src/renderer/public/pdfjs-dist/web/viewer.mjs

@@ -13097,15 +13097,15 @@ const PDFViewerApplication = {
       }
       if (isValidSpreadMode(spread)) {
         //默认双页
-        // this.pdfViewer.spreadMode = spread;
+        this.pdfViewer.spreadMode = spread;
-        this.pdfViewer.spreadMode = 1;
+        // this.pdfViewer.spreadMode = 1;
       }
     };
     this.isInitialViewSet = true;
     this.pdfSidebar?.setInitialView(sidebarView);
     //默认双页
-    // setViewerModes(scrollMode, spreadMode);
+    setViewerModes(scrollMode, spreadMode);
-    setViewerModes(scrollMode, 1);
+    // setViewerModes(scrollMode, 1);
     if (this.initialBookmark) {
       setRotation(this.initialRotation);
       delete this.initialRotation;