v2.4.1

src/Jiaowu.Api/Controllers/TimetableManagementController.cs

@@ -4,6 +4,7 @@ using Jiaowu.Api.Domain.Identity;
 using Jiaowu.Api.Infrastructure.Auth;
 using Jiaowu.Api.Infrastructure.Excel;
 using Jiaowu.Api.Infrastructure.Persistence;
+using Jiaowu.Api.Infrastructure.OfficialDocuments;
 using Jiaowu.Api.Infrastructure.Timetables;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
@@ -17,7 +18,8 @@ namespace Jiaowu.Api.Controllers;
 public sealed class TimetableManagementController(
     AppDbContext db,
     TimetableDataService timetableDataService,
-    ICurrentUserDataScope currentUserDataScope) : ControllerBase
+    ICurrentUserDataScope currentUserDataScope,
+    OfficialDocumentOptions officialDocumentOptions) : ControllerBase
 {
     private const string ManagementRoles =
         SystemRoles.SuperAdmin + "," +
@@ -239,7 +241,7 @@ public sealed class TimetableManagementController(
         }
 
         var fileName = $"课表批量导出-{FileName(timetables[0].Term.Name)}.pdf";
-        return File(TimetablePdfExporter.Create(timetables), "application/pdf", fileName);
+        return File(TimetablePdfExporter.Create(timetables, officialDocumentOptions.FontPath), "application/pdf", fileName);
     }
 
     [HttpPost("display-links/export.xlsx")]
@@ -297,7 +299,7 @@ public sealed class TimetableManagementController(
 
     private ActionResult PdfFile(TimetableData timetable) =>
         File(
-            TimetablePdfExporter.Create(timetable),
+            TimetablePdfExporter.Create(timetable, officialDocumentOptions.FontPath),
             "application/pdf",
             $"{FileName(timetable.Subject.Name)}-{FileName(timetable.Term.Name)}-课表.pdf");
 }

src/Jiaowu.Api/Controllers/TimetablesController.cs

@@ -5,6 +5,7 @@ using Jiaowu.Api.Domain.Identity;
 using Jiaowu.Api.Infrastructure.Caching;
 using Jiaowu.Api.Infrastructure.Excel;
 using Jiaowu.Api.Infrastructure.Persistence;
+using Jiaowu.Api.Infrastructure.OfficialDocuments;
 using Jiaowu.Api.Infrastructure.Timetables;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
@@ -18,7 +19,8 @@ public sealed class TimetablesController(
     AppDbContext db,
     TimetableDataService timetableDataService,
     PersonalCalendarService personalCalendarService,
-    IAppCache cache) : ControllerBase
+    IAppCache cache,
+    OfficialDocumentOptions officialDocumentOptions) : ControllerBase
 {
     [HttpGet("options")]
     [AllowAnonymous]
@@ -517,7 +519,7 @@ public sealed class TimetablesController(
     {
         var fileName =
             $"{SafeFileName(result.Subject.Name)}-{SafeFileName(result.Term.Name)}-课表.pdf";
-        return File(TimetablePdfExporter.Create(result), "application/pdf", fileName);
+        return File(TimetablePdfExporter.Create(result, officialDocumentOptions.FontPath), "application/pdf", fileName);
     }
 
     private static string SafeFileName(string value)

src/Jiaowu.Api/Infrastructure/OfficialDocuments/OfficialDocumentPdfGenerator.cs

@@ -1,6 +1,7 @@
 using System.Security.Cryptography;
 using QRCoder;
 using SkiaSharp;
+using Jiaowu.Api.Infrastructure.Pdf;
 
 namespace Jiaowu.Api.Infrastructure.OfficialDocuments;
 
@@ -28,7 +29,7 @@ public sealed class OfficialDocumentPdfGenerator(
         OfficialDocumentSnapshot snapshot,
         string verificationUrl)
     {
-        using var typeface = ResolveTypeface();
+        using var typeface = PdfTypefaceResolver.ResolveChineseTypeface(options.FontPath);
         using var stream = new MemoryStream();
         using (var document = SKDocument.CreatePdf(stream))
         {
@@ -382,28 +383,5 @@ public sealed class OfficialDocumentPdfGenerator(
         return value + "…";
     }
 
-    private SKTypeface ResolveTypeface()
-    {
-        var candidates = new[]
-        {
-            options.FontPath,
-            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "simhei.ttf"),
-            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "msyh.ttc"),
-            "/usr/share/fonts/noto/NotoSansCJK-Regular.ttc",
-            "/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc"
-        };
-        foreach (var path in candidates.Where(x => !string.IsNullOrWhiteSpace(x)))
-        {
-            if (!File.Exists(path)) continue;
-            var typeface = SKTypeface.FromFile(path);
-            if (typeface is not null) return typeface;
-        }
-
-        var fallback = SKTypeface.FromFamilyName("Microsoft YaHei") ??
-                       SKTypeface.FromFamilyName("Noto Sans CJK SC");
-        return fallback ?? throw new InvalidOperationException(
-            "未找到可用于官方 PDF 的中文字体。请配置 OfficialDocuments:FontPath。");
-    }
-
     private static string FormatDecimal(decimal value) => value.ToString("0.##");
 }

src/Jiaowu.Api/Infrastructure/Pdf/PdfTypefaceResolver.cs

@@ -0,0 +1,37 @@
+using SkiaSharp;
+
+namespace Jiaowu.Api.Infrastructure.Pdf;
+
+/// <summary>
+/// Resolves the CJK typeface used by every server-generated PDF.
+/// A configured font takes precedence so production exports do not silently
+/// fall back to a font without Chinese glyphs.
+/// </summary>
+public static class PdfTypefaceResolver
+{
+    public static SKTypeface ResolveChineseTypeface(string? configuredFontPath)
+    {
+        if (!string.IsNullOrWhiteSpace(configuredFontPath))
+            return Load(configuredFontPath) ?? throw new InvalidOperationException(
+                $"无法加载已配置的 PDF 中文字体：{configuredFontPath}。");
+
+        var candidates = new[]
+        {
+            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "simhei.ttf"),
+            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "msyh.ttc"),
+            "/usr/share/fonts/noto/NotoSansCJK-Regular.ttc",
+            "/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc"
+        };
+        foreach (var candidate in candidates)
+        {
+            var typeface = Load(candidate);
+            if (typeface is not null) return typeface;
+        }
+
+        throw new InvalidOperationException(
+            "未找到可用于 PDF 导出的中文字体。请配置 OfficialDocuments:FontPath。");
+    }
+
+    private static SKTypeface? Load(string path) =>
+        File.Exists(path) ? SKTypeface.FromFile(path) : null;
+}

src/Jiaowu.Api/Infrastructure/Timetables/TimetableExcelExporter.cs

@@ -137,7 +137,6 @@ public static class TimetableExcelExporter
                         .Font.SetFontColor(XLColor.FromHtml("#173F4C"));
                 }
             }
-            sheet.Row(row).Height = 64;
         }
 
         var grid = sheet.Range(
@@ -149,6 +148,8 @@ public static class TimetableExcelExporter
         grid.Style.Border.InsideBorderColor = XLColor.FromHtml("#D8E1E6");
         grid.Style.Border.OutsideBorder = XLBorderStyleValues.Medium;
         grid.Style.Border.OutsideBorderColor = XLColor.FromHtml("#AABBC5");
+        MergeContinuousCells(sheet, timedEntries, periods, headerRow);
+        SetRowHeights(sheet, periods.Length, headerRow, headers.Length);
         sheet.Column(1).Width = 16;
         for (var column = 2; column <= 8; column++) sheet.Column(column).Width = 24;
         sheet.SheetView.FreezeRows(headerRow);
@@ -171,6 +172,9 @@ public static class TimetableExcelExporter
                 sheet.Cell(row, 1).Style
                     .Fill.SetBackgroundColor(XLColor.FromHtml("#FFF8EA"))
                     .Alignment.SetWrapText();
+                sheet.Row(row).Height = Math.Max(22,
+                    8 + sheet.Cell(row, 1).GetString()
+                        .Split('\n', StringSplitOptions.None).Length * 15);
                 row++;
             }
         }
@@ -192,6 +196,74 @@ public static class TimetableExcelExporter
             : name + suffix;
     }
 
+    private static void MergeContinuousCells(
+        IXLWorksheet sheet,
+        IReadOnlyCollection<TimetableEntryDto> entries,
+        IReadOnlyList<int> periods,
+        int headerRow)
+    {
+        for (var day = 1; day <= 7; day++)
+        {
+            var start = 0;
+            while (start < periods.Count)
+            {
+                var currentEntries = EntriesAt(entries, day, periods[start]);
+                if (currentEntries.Length == 0)
+                {
+                    start++;
+                    continue;
+                }
+
+                var end = start;
+                while (end + 1 < periods.Count &&
+                       periods[end + 1] == periods[end] + 1 &&
+                       SameEntries(currentEntries, EntriesAt(entries, day, periods[end + 1])))
+                    end++;
+
+                if (end > start)
+                    sheet.Range(headerRow + start + 1, day + 1, headerRow + end + 1, day + 1).Merge();
+                start = end + 1;
+            }
+        }
+    }
+
+    private static void SetRowHeights(
+        IXLWorksheet sheet,
+        int periodCount,
+        int headerRow,
+        int columnCount)
+    {
+        for (var index = 0; index < periodCount; index++)
+        {
+            var row = headerRow + index + 1;
+            var bodyLineCount = Enumerable.Range(2, columnCount - 1)
+                .Select(column => sheet.Cell(row, column).GetString())
+                .Where(value => !string.IsNullOrWhiteSpace(value))
+                .Select(value => value.Split('\n', StringSplitOptions.None).Length)
+                .DefaultIfEmpty(0)
+                .Max();
+            sheet.Row(row).Height = bodyLineCount == 0
+                ? 42
+                : Math.Max(52, 14 + bodyLineCount * 15);
+        }
+    }
+
+    private static TimetableEntryDto[] EntriesAt(
+        IReadOnlyCollection<TimetableEntryDto> entries,
+        int day,
+        int period) =>
+        entries.Where(entry =>
+                entry.DayOfWeek == day &&
+                entry.StartPeriod <= period &&
+                entry.StartPeriod + entry.PeriodCount - 1 >= period)
+            .OrderBy(entry => entry.Id)
+            .ToArray();
+
+    private static bool SameEntries(
+        IReadOnlyList<TimetableEntryDto> left,
+        IReadOnlyList<TimetableEntryDto> right) =>
+        left.Count == right.Count && left.Select(entry => entry.Id).SequenceEqual(right.Select(entry => entry.Id));
+
     private static string EntryText(TimetableEntryDto entry) =>
         entry.IsExperiment
             ? $"【实验】{entry.ExperimentProjectName}\n" +

src/Jiaowu.Api/Infrastructure/Timetables/TimetablePdfExporter.cs

@@ -1,4 +1,5 @@
 using SkiaSharp;
+using Jiaowu.Api.Infrastructure.Pdf;
 
 namespace Jiaowu.Api.Infrastructure.Timetables;
 
@@ -13,14 +14,14 @@ public static class TimetablePdfExporter
     private static readonly SKColor Rule = new(206, 220, 226);
     private static readonly SKColor Pale = new(241, 247, 247);
 
-    public static byte[] Create(TimetableData timetable) => Create([timetable]);
+    public static byte[] Create(TimetableData timetable, string? fontPath = null) => Create([timetable], fontPath);
 
-    public static byte[] Create(IReadOnlyCollection<TimetableData> timetables)
+    public static byte[] Create(IReadOnlyCollection<TimetableData> timetables, string? fontPath = null)
     {
         if (timetables.Count == 0)
             throw new ArgumentException("至少需要一张课表。", nameof(timetables));
 
-        using var typeface = ResolveTypeface();
+        using var typeface = PdfTypefaceResolver.ResolveChineseTypeface(fontPath);
         using var stream = new MemoryStream();
         using var document = SKDocument.CreatePdf(stream);
         var page = 0;
@@ -29,6 +30,8 @@ public static class TimetablePdfExporter
             var periods = Periods(timetable);
             foreach (var periodPage in periods.Chunk(9))
                 DrawPage(document, typeface, timetable, periodPage, ++page);
+            foreach (var coursePage in timetable.FlexibleCourses.Chunk(9))
+                DrawFlexibleCoursesPage(document, typeface, timetable, coursePage, ++page);
         }
         document.Close();
         return stream.ToArray();
@@ -107,7 +110,15 @@ public static class TimetablePdfExporter
                         Style = SKPaintStyle.Fill
                     };
                     canvas.DrawRect(x, rowY, widths[day], rowHeight, fill);
-                    DrawCellText(canvas, typeface, cellEntries, x, rowY, widths[day], rowHeight);
+                    var startingEntries = cellEntries
+                        .Where(item => item.StartPeriod == period)
+                        .ToArray();
+                    if (startingEntries.Length > 0)
+                    {
+                        var spanRows = ConsecutiveSpan(periods, rowIndex, startingEntries);
+                        DrawCellText(canvas, typeface, startingEntries, x, rowY, widths[day],
+                            rowHeight * spanRows);
+                    }
                 }
                 x += widths[day];
             }
@@ -122,14 +133,23 @@ public static class TimetablePdfExporter
             canvas.DrawLine(x, y, x, y + tableHeight, grid);
         }
         for (var row = 0; row < periods.Count; row++)
-            canvas.DrawLine(Margin, y + headerHeight + row * rowHeight, Margin + widths.Sum(),
+        {
-                y + headerHeight + row * rowHeight, grid);
+            var lineY = y + headerHeight + row * rowHeight;
+            canvas.DrawLine(Margin, lineY, Margin + widths[0], lineY, grid);
+            x = Margin + widths[0];
+            for (var day = 1; day <= 7; day++)
+            {
+                var crossesBoundary = row > 0 && periods[row] == periods[row - 1] + 1 &&
+                    entries.Any(item => item.DayOfWeek == day &&
+                        item.StartPeriod < periods[row] &&
+                        item.StartPeriod + item.PeriodCount - 1 >= periods[row]);
+                if (!crossesBoundary)
+                    canvas.DrawLine(x, lineY, x + widths[day], lineY, grid);
+                x += widths[day];
+            }
+        }
 
-        var footerY = PageHeight - 31;
+        DrawFooter(canvas, typeface, page, titleRule);
-        canvas.DrawLine(Margin, footerY - 12, PageWidth - Margin, footerY - 12, titleRule);
-        DrawText(canvas, typeface, "明序教务 · 课表导出", Margin, footerY, 7.5f, Muted);
-        DrawText(canvas, typeface, $"第 {page} 页", PageWidth - Margin, footerY, 7.5f, Muted,
-            SKTextAlign.Right);
         document.EndPage();
     }
 
@@ -143,9 +163,57 @@ public static class TimetablePdfExporter
         float height)
     {
         var text = string.Join("\n", entries.Select(EntryText));
-        var lines = WrapText(typeface, text, 6.6f, width - 8).Take(5).ToArray();
+        const float fontSize = 6.5f;
+        const float lineHeight = 7.8f;
+        var maxLines = Math.Max(1, (int)Math.Floor((height - 10) / lineHeight));
+        var lines = WrapText(typeface, text, fontSize, width - 8).Take(maxLines).ToArray();
         for (var index = 0; index < lines.Length; index++)
-            DrawText(canvas, typeface, lines[index], x + 4, y + 10 + index * 8, 6.6f, Ink);
+            DrawText(canvas, typeface, lines[index], x + 4, y + 9 + index * lineHeight, fontSize, Ink);
+    }
+
+    private static void DrawFlexibleCoursesPage(
+        SKDocument document,
+        SKTypeface typeface,
+        TimetableData timetable,
+        IReadOnlyList<FlexibleCourseDto> courses,
+        int page)
+    {
+        using var canvas = document.BeginPage(PageWidth, PageHeight);
+        canvas.Clear(SKColors.White);
+        using var frame = new SKPaint { Color = Accent, Style = SKPaintStyle.Stroke, StrokeWidth = 1.1f };
+        using var titleRule = new SKPaint { Color = Rule, StrokeWidth = .8f };
+        using var heading = new SKPaint { Color = new SKColor(128, 92, 39), Style = SKPaintStyle.Fill };
+        canvas.DrawRect(14, 14, PageWidth - 28, PageHeight - 28, frame);
+        DrawText(canvas, typeface, timetable.Subject.Name, Margin, 53, 19, Ink, bold: true);
+        DrawText(canvas, typeface, "非排时课程", PageWidth - Margin, 53, 11, Accent, SKTextAlign.Right, true);
+        DrawText(canvas, typeface, $"{timetable.Subject.Code} · {timetable.Term.Name}", Margin, 74, 9, Muted);
+        canvas.DrawLine(Margin, 86, PageWidth - Margin, 86, titleRule);
+
+        const float contentY = 107;
+        const float rowHeight = 43;
+        canvas.DrawRoundRect(new SKRect(Margin, contentY, PageWidth - Margin, contentY + 26), 3, 3, heading);
+        DrawText(canvas, typeface, "非排时课程（不占正常上课时间与场地）", Margin + 12, contentY + 17, 9,
+            SKColors.White, bold: true);
+        for (var index = 0; index < courses.Count; index++)
+        {
+            var course = courses[index];
+            var rowY = contentY + 26 + index * rowHeight;
+            using var fill = new SKPaint
+            {
+                Color = index % 2 == 0 ? new SKColor(255, 248, 234) : SKColors.White,
+                Style = SKPaintStyle.Fill
+            };
+            canvas.DrawRect(Margin, rowY, PageWidth - Margin * 2, rowHeight, fill);
+            DrawText(canvas, typeface, $"{course.CourseCode} · {course.CourseName}", Margin + 12, rowY + 16,
+                9, Ink, bold: true);
+            DrawText(canvas, typeface,
+                $"教师：{string.Join('、', course.TeacherNames)} · 第 {course.StartWeek}-{course.EndWeek} 周 · 每周 {course.WeeklyHours} 学时",
+                Margin + 12, rowY + 31, 8, Muted);
+            canvas.DrawLine(Margin, rowY + rowHeight, PageWidth - Margin, rowY + rowHeight, titleRule);
+        }
+
+        DrawFooter(canvas, typeface, page, titleRule);
+        document.EndPage();
     }
 
     private static IReadOnlyList<int> Periods(TimetableData timetable)
@@ -158,8 +226,32 @@ public static class TimetablePdfExporter
     }
 
     private static string EntryText(TimetableEntryDto entry) =>
-        $"{(entry.IsExam ? "【考试】" : entry.IsExperiment ? "【实验】" : "")}{entry.CourseName} · {string.Join('、', entry.TeacherNames)}" +
+        entry.IsExperiment
-        $" · {string.Join(" ", new[] { entry.BuildingName, entry.ClassroomName }.Where(item => !string.IsNullOrWhiteSpace(item)))}";
+            ? $"【实验】{entry.ExperimentProjectName}\n" +
+              $"{entry.CourseName} · {ArrangementMode(entry)}\n" +
+              $"实验日：{entry.ExperimentDate:yyyy/M/d} · 第 {entry.StartPeriod}-{entry.StartPeriod + entry.PeriodCount - 1} 节\n" +
+              $"{string.Join('、', entry.TeacherNames)} · {Location(entry)}"
+            : entry.IsExam
+            ? $"【考试】{entry.CourseName}\n" +
+              $"考试日：{entry.ExamDate:yyyy/M/d} · 第 {entry.StartPeriod}-{entry.StartPeriod + entry.PeriodCount - 1} 节\n" +
+              $"{string.Join('、', entry.TeacherNames)} · {Location(entry)}"
+            : $"{(entry.Kind == Domain.Academic.ScheduleEntryKind.Experiment ? "【实验课】" : "")}{entry.CourseName}\n" +
+              $"{string.Join('、', entry.TeacherNames)} · {Location(entry)}\n" +
+              $"第 {entry.StartWeek}-{entry.EndWeek} 周";
+
+    private static string ArrangementMode(TimetableEntryDto entry) => entry.ExperimentArrangementMode switch
+    {
+        Domain.Academic.ExperimentArrangementMode.Centralized => "集中安排",
+        Domain.Academic.ExperimentArrangementMode.SelfScheduled => "自主预约",
+        _ => "实验安排"
+    };
+
+    private static string Location(TimetableEntryDto entry) => string.Join(" · ", new[]
+    {
+        entry.CampusName,
+        entry.BuildingName,
+        entry.ClassroomName
+    }.Where(item => !string.IsNullOrWhiteSpace(item)));
 
     private static IReadOnlyList<string> WrapText(SKTypeface typeface, string text, float size, float width)
     {
@@ -183,6 +275,20 @@ public static class TimetablePdfExporter
         return lines;
     }
 
+    private static int ConsecutiveSpan(
+        IReadOnlyList<int> periods,
+        int startIndex,
+        IReadOnlyCollection<TimetableEntryDto> entries)
+    {
+        var endPeriod = entries.Max(entry => entry.StartPeriod + entry.PeriodCount - 1);
+        var count = 1;
+        for (var index = startIndex + 1;
+             index < periods.Count && periods[index] == periods[index - 1] + 1 && periods[index] <= endPeriod;
+             index++)
+            count++;
+        return count;
+    }
+
     private static void DrawText(SKCanvas canvas, SKTypeface typeface, string text, float x, float y,
         float size, SKColor color, SKTextAlign align = SKTextAlign.Left, bool bold = false)
     {
@@ -191,23 +297,13 @@ public static class TimetablePdfExporter
         canvas.DrawText(text, x, y, align, font, paint);
     }
 
-    private static SKTypeface ResolveTypeface()
+    private static void DrawFooter(SKCanvas canvas, SKTypeface typeface, int page, SKPaint titleRule)
     {
-        var candidates = new[]
+        var footerY = PageHeight - 31;
-        {
+        canvas.DrawLine(Margin, footerY - 12, PageWidth - Margin, footerY - 12, titleRule);
-            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "simhei.ttf"),
+        DrawText(canvas, typeface, "明序教务 · 课表导出", Margin, footerY, 7.5f, Muted);
-            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "msyh.ttc"),
+        DrawText(canvas, typeface, $"第 {page} 页", PageWidth - Margin, footerY, 7.5f, Muted,
-            "/usr/share/fonts/noto/NotoSansCJK-Regular.ttc",
+            SKTextAlign.Right);
-            "/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc"
-        };
-        foreach (var path in candidates)
-        {
-            if (File.Exists(path) && SKTypeface.FromFile(path) is { } typeface)
-                return typeface;
-        }
-        return SKTypeface.FromFamilyName("Microsoft YaHei") ??
-               SKTypeface.FromFamilyName("Noto Sans CJK SC") ??
-               throw new InvalidOperationException("未找到可用于课表 PDF 的中文字体。");
     }
 
     private static string PlanStatus(Domain.Academic.SchedulePlanStatus status) => status switch

tests/Jiaowu.Api.Tests/TimetableExcelExporterTests.cs

@@ -157,6 +157,10 @@ public sealed class TimetableExcelExporterTests
         Assert.Contains("【实验】基础控制实验", sheet.Cell(5, 5).GetString());
         Assert.Contains("自主预约", sheet.Cell(5, 5).GetString());
         Assert.Contains("2027-01-05", sheet.Cell(5, 3).GetString());
+        Assert.True(sheet.Row(5).Height > 64,
+            "包含多门课程、考试和实验的节次行必须按内容增高，不能截断文字。");
+        Assert.Contains(sheet.MergedRanges,
+            range => range.RangeAddress.ToString() == "B5:B6");
         Assert.Contains(
             sheet.CellsUsed(),
             cell => cell.GetString().Contains("非排时课程"));
@@ -171,6 +175,6 @@ public sealed class TimetableExcelExporterTests
         var pdf = TimetablePdfExporter.Create([timetable, timetable]);
         Assert.Equal("%PDF", System.Text.Encoding.ASCII.GetString(pdf, 0, 4));
         Assert.Contains(System.Text.Encoding.ASCII.GetBytes("%%EOF"), pdf);
-        Assert.True(pdf.Length > 1_000, "生成的 PDF 不应为空。");
+        Assert.True(pdf.Length > 2_000, "课表 PDF 必须包含完整课程和非排时课程页面。");
     }
 }

versions.props

@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup>
-    <JiaowuBackendVersion>2.4.0</JiaowuBackendVersion>
+    <JiaowuBackendVersion>2.4.1</JiaowuBackendVersion>
-    <JiaowuFrontendVersion>2.4.0</JiaowuFrontendVersion>
+    <JiaowuFrontendVersion>2.4.1</JiaowuFrontendVersion>
-    <JiaowuSwaggerVersion>2.4.0</JiaowuSwaggerVersion>
+    <JiaowuSwaggerVersion>2.4.1</JiaowuSwaggerVersion>
   </PropertyGroup>
 </Project>