实验课现在直接进入普通排课流程，不再要求先到实验排课模块逐个安排。

普通“添加排课”新增“理论课 / 实验课”类型。自动排课会分别补足理论学时和实验学时。实验课只能安排到实验室、实训室、机房、语音室等场地。发布课表时分别校验理论、实验学时；任一未排足都不能发布。普通课表及 Excel 导出会标注“实验课”。历史排课保持不变，迁移后默认识别为理论课；后续新建或修订版本时再补充实验课。
2026-08-02 16:54:41 +08:00
parent 9d525826ce
commit f0f59419d5
22 changed files with 6488 additions and 266 deletions
@@ -416,6 +416,8 @@ public sealed class AppDbContext(DbContextOptions<AppDbContext> options)

        builder.Entity<ScheduleEntry>(entity =>
        {
+            entity.Property(x => x.Kind)
+                .HasDefaultValue(ScheduleEntryKind.Lecture);
            entity.Property(x => x.Notes).HasMaxLength(500);
            entity.HasIndex(x => new
            {
@@ -76,6 +76,8 @@ public sealed class DevelopmentSqliteMigrator(
        "20260728_40_experiment_grade_management";
    private const string AppUpdateReleasesMigration =
        "20260729_41_app_update_releases";
+    private const string IntegratedExperimentSchedulingMigration =
+        "20260802_42_integrated_experiment_scheduling";

    public async Task MigrateAsync(CancellationToken cancellationToken = default)
    {
@@ -577,6 +579,20 @@ public sealed class DevelopmentSqliteMigrator(
            AppUpdateReleasesMigration,
            AppUpdateReleasesStatements,
            cancellationToken);
+        var scheduleEntryKindExists = await db.Database
+            .SqlQueryRaw<int>(
+                """
+                SELECT COUNT(*) AS "Value"
+                FROM pragma_table_info('ScheduleEntries')
+                WHERE name = 'Kind'
+                """)
+            .AnyAsync(value => value > 0, cancellationToken);
+        await ApplyMigrationAsync(
+            IntegratedExperimentSchedulingMigration,
+            scheduleEntryKindExists
+                ? []
+                : IntegratedExperimentSchedulingStatements,
+            cancellationToken);
    }

    private async Task ApplyMigrationAsync(
@@ -2714,4 +2730,12 @@ public sealed class DevelopmentSqliteMigrator(
        ON "ExperimentGradeItemScores" ("ExperimentGradeItemId");
        """
    ];
+
+    private static readonly string[] IntegratedExperimentSchedulingStatements =
+    [
+        """
+        ALTER TABLE "ScheduleEntries"
+        ADD COLUMN "Kind" INTEGER NOT NULL DEFAULT 1;
+        """
+    ];
 }
@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Jiaowu.Api.Infrastructure.Persistence.Migrations.MySql
+{
+    /// <inheritdoc />
+    public partial class IntegratedExperimentScheduling : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "Kind",
+                table: "ScheduleEntries",
+                type: "int",
+                nullable: false,
+                defaultValue: 1);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Kind",
+                table: "ScheduleEntries");
+        }
+    }
+}
@@ -3296,6 +3296,10 @@ namespace Jiaowu.Api.Infrastructure.Persistence.Migrations.MySql
                    b.Property<int>("EndWeek")
                        .HasColumnType("int");

+                    b.Property<int>("Kind")
+                        .HasColumnType("int")
+                        .HasDefaultValue(1);
+
                    b.Property<string>("Notes")
                        .HasMaxLength(500)
                        .HasColumnType("varchar(500)");
@@ -74,97 +74,62 @@ public sealed class AutomaticScheduleGenerator(AppDbContext db)
        {
            cancellationToken.ThrowIfCancellationRequested();
            constraints.TryGetValue(task.Id, out var constraint);
-            if (!TeachingTaskHours.TryResolveRegularWeeklyHours(
-                    task.Course!,
-                    task.StartWeek,
-                    task.EndWeek,
-                    out var requiredWeeklyHours))
+            var taskCompleted = true;
+            foreach (var kind in new[]
+                     {
+                         ScheduleEntryKind.Lecture,
+                         ScheduleEntryKind.Experiment
+                     })
            {
-                messages.Add(
-                    $"{task.TaskNumber} · {task.Name} 的普通排课学时不能按授课周次整除，请调整教学任务周次。");
-                processedTasks++;
-                if (reportProgress is not null)
+                var targetHours = TeachingTaskHours.TargetHours(task.Course!, kind);
+                var scheduledHours = entries
+                    .Where(x =>
+                        x.TeachingTaskId == task.Id &&
+                        x.Kind == kind)
+                    .Sum(TeachingTaskHours.ScheduledHours);
+                var label = kind == ScheduleEntryKind.Experiment ? "实验课" : "理论课";
+                if (scheduledHours > targetHours)
                {
-                    await reportProgress(
-                        new(tasks.Count, processedTasks, created, completedTasks),
-                        cancellationToken);
+                    messages.Add(
+                        $"{task.TaskNumber} · {task.Name} 的{label}已安排 {scheduledHours} 学时，" +
+                        $"超过课程规定的 {targetHours} 学时，请先删除多余课次。");
+                    taskCompleted = false;
+                    continue;
                }
-                continue;
-            }

-            var scheduledHours = entries
-                .Where(x => x.TeachingTaskId == task.Id)
-                .Sum(x => x.PeriodCount);
-            if (scheduledHours > requiredWeeklyHours)
-            {
-                messages.Add(
-                    $"{task.TaskNumber} · {task.Name} 已安排每周 {scheduledHours} 学时，" +
-                    $"普通课表只需 {requiredWeeklyHours} 学时；请删除已包含的实践学时。");
-                processedTasks++;
-                if (reportProgress is not null)
+                var remainingHours = targetHours - scheduledHours;
+                while (remainingHours > 0)
                {
-                    await reportProgress(
-                        new(tasks.Count, processedTasks, created, completedTasks),
-                        cancellationToken);
-                }
-                continue;
-            }
-
-            var remainingHours = requiredWeeklyHours - scheduledHours;
-            if (remainingHours == 0)
-            {
-                completedTasks++;
-                processedTasks++;
-                if (reportProgress is not null)
-                {
-                    await reportProgress(
-                        new(tasks.Count, processedTasks, created, completedTasks),
-                        cancellationToken);
-                }
-                continue;
-            }
-
-            while (remainingHours > 0)
-            {
-                var desiredBlock = remainingHours >= 2 ? 2 : 1;
-                var candidate = FindBestCandidate(
-                    plan.Id,
-                    task,
-                    constraint,
-                    desiredBlock,
-                    activePeriods,
-                    classrooms,
-                    entries,
-                    cancellationToken);
-                if (candidate is null && desiredBlock > 1)
-                {
-                    candidate = FindBestCandidate(
+                    var candidate = FindBestCandidateForHours(
                        plan.Id,
                        task,
                        constraint,
-                        1,
+                        kind,
+                        remainingHours,
                        activePeriods,
                        classrooms,
                        entries,
                        cancellationToken);
+                    if (candidate is null) break;
+
+                    db.ScheduleEntries.Add(candidate);
+                    entries.Add(candidate);
+                    created++;
+                    remainingHours -= TeachingTaskHours.ScheduledHours(candidate);
                }
-                if (candidate is null) break;

-                db.ScheduleEntries.Add(candidate);
-                entries.Add(candidate);
-                created++;
-                remainingHours -= candidate.PeriodCount;
+                if (remainingHours > 0)
+                {
+                    messages.Add(
+                        $"{task.TaskNumber} · {task.Name} 仍有 {remainingHours} 个{label}学时无法安排，" +
+                        (kind == ScheduleEntryKind.Experiment
+                            ? "请检查实验室/机房容量、教师班级冲突或时间约束。"
+                            : "请检查教师/班级冲突或场地与时间约束。"));
+                    taskCompleted = false;
+                }
            }

-            if (remainingHours == 0)
-            {
-                completedTasks++;
-            }
-            else
-            {
-                messages.Add(
-                    $"{task.TaskNumber} · {task.Name} 仍有 {remainingHours} 学时无法安排，请检查教师/班级冲突或场地与时间约束。");
-            }
+            if (taskCompleted) completedTasks++;

            processedTasks++;
            if (reportProgress is not null)
@@ -185,11 +150,51 @@ public sealed class AutomaticScheduleGenerator(AppDbContext db)
            processedTasks);
    }

+    private static ScheduleEntry? FindBestCandidateForHours(
+        Guid planId,
+        TeachingTask task,
+        TeachingTaskScheduleConstraint? constraint,
+        ScheduleEntryKind kind,
+        int remainingHours,
+        HashSet<int> activePeriods,
+        IReadOnlyList<Classroom> classrooms,
+        IReadOnlyList<ScheduleEntry> entries,
+        CancellationToken cancellationToken)
+    {
+        var weekCount = task.EndWeek - task.StartWeek + 1;
+        foreach (var periodCount in remainingHours >= 2
+                     ? new[] { 2, 1 }
+                     : new[] { 1 })
+        {
+            var maxOccurrences = Math.Min(
+                weekCount,
+                remainingHours / periodCount);
+            for (var occurrences = maxOccurrences; occurrences >= 1; occurrences--)
+            {
+                var candidate = FindBestCandidate(
+                    planId,
+                    task,
+                    constraint,
+                    kind,
+                    periodCount,
+                    occurrences,
+                    activePeriods,
+                    classrooms,
+                    entries,
+                    cancellationToken);
+                if (candidate is not null) return candidate;
+            }
+        }
+        return null;
+    }
+
    private static ScheduleEntry? FindBestCandidate(
        Guid planId,
        TeachingTask task,
        TeachingTaskScheduleConstraint? constraint,
+        ScheduleEntryKind kind,
        int periodCount,
+        int occurrenceCount,
        HashSet<int> activePeriods,
        IReadOnlyList<Classroom> classrooms,
        IReadOnlyList<ScheduleEntry> entries,
@@ -198,50 +203,60 @@ public sealed class AutomaticScheduleGenerator(AppDbContext db)
        var allowedDays = ParseAllowedDays(constraint?.AllowedDayOfWeeks);
        var firstPeriod = constraint?.EarliestPeriod ?? activePeriods.Min();
        var lastPeriod = constraint?.LatestPeriod ?? activePeriods.Max();
-        var rooms = EligibleRooms(task, constraint, classrooms);
+        var rooms = EligibleRooms(task, constraint, kind, classrooms);
        if ((constraint?.RequiresClassroom ?? true) && rooms.Count == 0)
            return null;

        var candidates = new List<(ScheduleEntry Entry, int Score)>();
-        foreach (var day in allowedDays)
+        for (var startWeek = task.StartWeek;
+             startWeek + occurrenceCount - 1 <= task.EndWeek;
+             startWeek++)
        {
-            cancellationToken.ThrowIfCancellationRequested();
-            for (var start = firstPeriod; start + periodCount - 1 <= lastPeriod; start++)
+            foreach (var day in allowedDays)
            {
                cancellationToken.ThrowIfCancellationRequested();
-                if (Enumerable.Range(start, periodCount).Any(period => !activePeriods.Contains(period)))
-                    continue;
-
-                var roomOptions = constraint?.RequiresClassroom == false
-                    ? new Classroom?[] { null }
-                    : rooms.Cast<Classroom?>().ToArray();
-                foreach (var room in roomOptions)
+                for (var start = firstPeriod; start + periodCount - 1 <= lastPeriod; start++)
                {
-                    var proposed = new ScheduleEntry
-                    {
-                        SchedulePlanId = planId,
-                        TeachingTaskId = task.Id,
-                        TeachingTask = task,
-                        ClassroomId = room?.Id,
-                        DayOfWeek = day,
-                        StartPeriod = start,
-                        PeriodCount = periodCount,
-                        StartWeek = task.StartWeek,
-                        EndWeek = task.EndWeek,
-                        WeekPattern = WeekPattern.All,
-                        Notes = "自动排课"
-                    };
-                    if (entries.Any(existing =>
-                            ScheduleConflictDetector.TimeOverlaps(existing, proposed) &&
-                            ScheduleConflictDetector.ConflictReason(existing, proposed) is not null))
+                    cancellationToken.ThrowIfCancellationRequested();
+                    if (Enumerable.Range(start, periodCount).Any(period => !activePeriods.Contains(period)))
                        continue;

-                    var sameTaskDay = entries.Count(x =>
-                        x.TeachingTaskId == task.Id && x.DayOfWeek == day);
-                    var dayLoad = entries.Count(x => x.DayOfWeek == day);
-                    var roomWaste = room is null ? 0 : Math.Max(0, room.Capacity - task.Capacity);
-                    var score = sameTaskDay * 1000 + dayLoad * 10 + start + roomWaste / 10;
-                    candidates.Add((proposed, score));
+                    var roomOptions = kind != ScheduleEntryKind.Experiment &&
+                                      constraint?.RequiresClassroom == false
+                        ? new Classroom?[] { null }
+                        : rooms.Cast<Classroom?>().ToArray();
+                    foreach (var room in roomOptions)
+                    {
+                        var proposed = new ScheduleEntry
+                        {
+                            SchedulePlanId = planId,
+                            TeachingTaskId = task.Id,
+                            TeachingTask = task,
+                            Kind = kind,
+                            ClassroomId = room?.Id,
+                            DayOfWeek = day,
+                            StartPeriod = start,
+                            PeriodCount = periodCount,
+                            StartWeek = startWeek,
+                            EndWeek = startWeek + occurrenceCount - 1,
+                            WeekPattern = WeekPattern.All,
+                            Notes = kind == ScheduleEntryKind.Experiment
+                                ? "自动排课 · 实验课"
+                                : "自动排课 · 理论课"
+                        };
+                        if (entries.Any(existing =>
+                                ScheduleConflictDetector.TimeOverlaps(existing, proposed) &&
+                                ScheduleConflictDetector.ConflictReason(existing, proposed) is not null))
+                            continue;
+
+                        var sameTaskDay = entries.Count(x =>
+                            x.TeachingTaskId == task.Id && x.DayOfWeek == day);
+                        var dayLoad = entries.Count(x => x.DayOfWeek == day);
+                        var roomWaste = room is null ? 0 : Math.Max(0, room.Capacity - task.Capacity);
+                        var score = sameTaskDay * 1000 + dayLoad * 10 + start +
+                                    roomWaste / 10 + startWeek;
+                        candidates.Add((proposed, score));
+                    }
                }
            }
        }
@@ -256,9 +271,11 @@ public sealed class AutomaticScheduleGenerator(AppDbContext db)
    private static IReadOnlyList<Classroom> EligibleRooms(
        TeachingTask task,
        TeachingTaskScheduleConstraint? constraint,
+        ScheduleEntryKind kind,
        IReadOnlyList<Classroom> classrooms)
    {
-        if (constraint?.RequiresClassroom == false) return [];
+        if (kind != ScheduleEntryKind.Experiment &&
+            constraint?.RequiresClassroom == false) return [];
        var allowedRoomIds = constraint?.AllowedClassrooms
            .Select(x => x.ClassroomId)
            .ToHashSet() ?? [];
@@ -273,10 +290,17 @@ public sealed class AutomaticScheduleGenerator(AppDbContext db)
                    room.Building!.CampusId == requiredCampusId) &&
                (constraint?.RequiredBuildingId is not Guid requiredBuildingId ||
                    room.BuildingId == requiredBuildingId) &&
-                (allowedRoomIds.Count == 0 || allowedRoomIds.Contains(room.Id)))
+                (allowedRoomIds.Count == 0 || allowedRoomIds.Contains(room.Id)) &&
+                (kind != ScheduleEntryKind.Experiment || IsExperimentRoom(room.RoomType)))
            .ToList();
    }

+    private static bool IsExperimentRoom(string roomType) =>
+        roomType.Contains("实验", StringComparison.OrdinalIgnoreCase) ||
+        roomType.Contains("实训", StringComparison.OrdinalIgnoreCase) ||
+        roomType.Contains("机房", StringComparison.OrdinalIgnoreCase) ||
+        roomType.Contains("语音", StringComparison.OrdinalIgnoreCase);
+
    private static int[] ParseAllowedDays(string? value)
    {
        if (string.IsNullOrWhiteSpace(value)) return [1, 2, 3, 4, 5];
@@ -191,57 +191,30 @@ public sealed class SchedulePlanPublisher(AppDbContext db)
                CoursePracticeHours = x.Course.PracticeHours
            })
            .ToListAsync(cancellationToken);
-        var invalidHours = requiredTasks.FirstOrDefault(task =>
-            !TeachingTaskHours.TryResolveRegularWeeklyHours(
-                task.CourseTotalHours,
-                task.CoursePracticeHours,
-                task.StartWeek,
-                task.EndWeek,
-                out _));
-        if (invalidHours is not null)
-        {
-            throw new SchedulePublishValidationException(
-                $"{invalidHours.TaskNumber} · {invalidHours.Name} 的普通排课学时" +
-                "不能按授课周次整除，请先调整教学任务周次。");
-        }
-
-        var requiredWeeklyHours = requiredTasks
-            .Select(task =>
-            {
-                TeachingTaskHours.TryResolveRegularWeeklyHours(
-                    task.CourseTotalHours,
-                    task.CoursePracticeHours,
-                    task.StartWeek,
-                    task.EndWeek,
-                    out var hours);
-                return new
-                {
-                    Task = task,
-                    Hours = hours
-                };
-            })
-            .ToList();
        var scheduledHours = plan.Entries
-            .GroupBy(x => x.TeachingTaskId)
-            .ToDictionary(group => group.Key, group => group.Sum(x => x.PeriodCount));
-        var incomplete = requiredWeeklyHours.FirstOrDefault(item =>
-            scheduledHours.GetValueOrDefault(item.Task.Id) < item.Hours);
-        if (incomplete is not null)
+            .GroupBy(x => new { x.TeachingTaskId, x.Kind })
+            .ToDictionary(
+                group => (group.Key.TeachingTaskId, group.Key.Kind),
+                group => group.Sum(TeachingTaskHours.ScheduledHours));
+        foreach (var task in requiredTasks)
        {
-            throw new SchedulePublishValidationException(
-                $"{incomplete.Task.TaskNumber} · {incomplete.Task.Name} 尚未达到每周 " +
-                $"{incomplete.Hours} 个普通排课学时，不能发布。");
-        }
-
-        var excessive = requiredWeeklyHours.FirstOrDefault(item =>
-            scheduledHours.GetValueOrDefault(item.Task.Id) > item.Hours);
-        if (excessive is not null)
-        {
-            var actualHours = scheduledHours.GetValueOrDefault(excessive.Task.Id);
-            throw new SchedulePublishValidationException(
-                $"{excessive.Task.TaskNumber} · {excessive.Task.Name} 已安排每周 " +
-                $"{actualHours} 学时，普通课表应为 {excessive.Hours} 学时；" +
-                "请删除已包含的实践学时后再发布。");
+            var targets = new[]
+            {
+                (Kind: ScheduleEntryKind.Lecture,
+                    Hours: Math.Max(0, task.CourseTotalHours - task.CoursePracticeHours),
+                    Label: "理论课"),
+                (Kind: ScheduleEntryKind.Experiment,
+                    Hours: Math.Max(0, task.CoursePracticeHours),
+                    Label: "实验课")
+            };
+            foreach (var target in targets)
+            {
+                var actual = scheduledHours.GetValueOrDefault((task.Id, target.Kind));
+                if (actual == target.Hours) continue;
+                throw new SchedulePublishValidationException(
+                    $"{task.TaskNumber} · {task.Name} 的{target.Label}应安排 " +
+                    $"{target.Hours} 学时，当前已安排 {actual} 学时，不能发布。");
+            }
        }

        await reportProgress(3, "检查教师、行政班和教室冲突", cancellationToken);
@@ -275,7 +248,8 @@ public sealed class SchedulePlanPublisher(AppDbContext db)
            Fail(entry, "排课周次不在教学任务的授课周次内");

        constraints.TryGetValue(entry.TeachingTaskId, out var constraint);
-        var requiresClassroom = constraint?.RequiresClassroom ?? true;
+        var requiresClassroom = entry.Kind == ScheduleEntryKind.Experiment ||
+                                constraint?.RequiresClassroom != false;
        if (requiresClassroom && entry.ClassroomId is null)
            Fail(entry, "该课程需要占用教室");
        if (!requiresClassroom && entry.ClassroomId is not null)
@@ -296,6 +270,9 @@ public sealed class SchedulePlanPublisher(AppDbContext db)
        {
            if (classroom is null || !classroom.IsEnabled)
                Fail(entry, "所选教室不存在或已停用");
+            if (entry.Kind == ScheduleEntryKind.Experiment &&
+                !IsExperimentRoom(classroom.RoomType))
+                Fail(entry, $"实验课不能安排在“{classroom.RoomType}”类型的场地");
            if (constraint?.RequiredCampusId is Guid campusId &&
                classroom.Building!.CampusId != campusId)
                Fail(entry, "所选教室不在指定校区");
@@ -328,6 +305,12 @@ public sealed class SchedulePlanPublisher(AppDbContext db)
                .Select(int.Parse)
                .ToHashSet();

+    private static bool IsExperimentRoom(string roomType) =>
+        roomType.Contains("实验", StringComparison.OrdinalIgnoreCase) ||
+        roomType.Contains("实训", StringComparison.OrdinalIgnoreCase) ||
+        roomType.Contains("机房", StringComparison.OrdinalIgnoreCase) ||
+        roomType.Contains("语音", StringComparison.OrdinalIgnoreCase);
+
    [DoesNotReturn]
    private static void Fail(ScheduleEntry entry, string message)
    {
@@ -16,10 +16,35 @@ public static class TeachingTaskHours
    public static int TargetHours(
        Course course,
        TeachingTaskSchedulingMode schedulingMode) =>
-        schedulingMode == TeachingTaskSchedulingMode.Flexible
-            ? course.TotalHours
+        course.TotalHours;
+
+    public static int TargetHours(Course course, ScheduleEntryKind kind) =>
+        kind == ScheduleEntryKind.Experiment
+            ? Math.Max(0, course.PracticeHours)
            : RegularScheduleHours(course);

+    public static int ScheduledHours(ScheduleEntry entry) =>
+        ScheduledHours(
+            entry.StartWeek,
+            entry.EndWeek,
+            entry.WeekPattern,
+            entry.PeriodCount);
+
+    public static int ScheduledHours(
+        int startWeek,
+        int endWeek,
+        WeekPattern weekPattern,
+        int periodCount)
+    {
+        if (endWeek < startWeek || periodCount <= 0) return 0;
+        var occurrences = Enumerable.Range(startWeek, endWeek - startWeek + 1)
+            .Count(week =>
+                weekPattern == WeekPattern.All ||
+                weekPattern == WeekPattern.Odd && week % 2 == 1 ||
+                weekPattern == WeekPattern.Even && week % 2 == 0);
+        return occurrences * periodCount;
+    }
+
    public static bool TryResolveRegularWeeklyHours(
        Course course,
        int startWeek,
@@ -62,14 +87,8 @@ public static class TeachingTaskHours

        if (schedulingMode == TeachingTaskSchedulingMode.Standard)
        {
-            if (targetHours == 0)
-            {
-                return $"课程“{course.Name}”的 {course.TotalHours} 学时均为实践学时，" +
-                       "无需进入普通课表；请将授课方式设为“非排时课程”，并在实验管理中安排。";
-            }
-
            return $"课程“{course.Name}”总学时为 {course.TotalHours}，其中实践学时 " +
-                   $"{course.PracticeHours}，普通课表应安排 {targetHours} 学时；当前第 " +
+                   $"{course.PracticeHours}；理论课和实验课均应进入课表。当前第 " +
                   $"{startWeek}—{endWeek} 周、每周 {weeklyHours} 学时，共 " +
                   $"{plannedHours} 学时。请调整授课周次或周学时。";
        }
@@ -106,7 +106,14 @@ public sealed class TimetableDataService(AppDbContext db)
                    false,
                    null,
                    null,
-                    x.UpdatedAt))
+                    x.UpdatedAt,
+                    false,
+                    null,
+                    null,
+                    null,
+                    null,
+                    null,
+                    x.Kind))
                .ToListAsync(cancellationToken);
        }

@@ -751,7 +758,8 @@ public sealed record TimetableEntryDto(
    string? ExperimentProjectCode = null,
    string? ExperimentProjectName = null,
    DateOnly? ExperimentDate = null,
-    ExperimentArrangementMode? ExperimentArrangementMode = null);
+    ExperimentArrangementMode? ExperimentArrangementMode = null,
+    ScheduleEntryKind Kind = ScheduleEntryKind.Lecture);

 public sealed record FlexibleCourseDto(
    Guid Id,
@@ -173,7 +173,7 @@ public static class TimetableExcelExporter
              $"{Location(entry)}\n" +
              $"{entry.ExamDate:yyyy-MM-dd} · 第 {entry.StartPeriod}-" +
              $"{entry.StartPeriod + entry.PeriodCount - 1} 节"
-            : $"{entry.CourseName}\n" +
+            : $"{(entry.Kind == Domain.Academic.ScheduleEntryKind.Experiment ? "【实验课】" : "")}{entry.CourseName}\n" +
              $"{string.Join('、', entry.TeacherNames)}\n" +
              $"{Location(entry)}\n" +
              $"{entry.StartWeek}-{entry.EndWeek} 周";