新建时可选“自动生成顺序号”：例如 数据库实验 01、02…

或选“逐行粘贴名称”：每行一个名称，按实际生成顺序对应项目。
草稿项目支持勾选后“批量改名”，可直接粘贴多行名称。
服务端会校验名称数量、长度和草稿状态，避免错位或修改已发布项目。

src/Jiaowu.Api/Controllers/ExperimentsController.cs

@@ -574,6 +574,27 @@ public sealed class ExperimentsController(
             }
         }
 
+        var names = NormalizeBatchProjectNames(request.Names);
+        if (request.GenerateSequentialNames)
+        {
+            if (names is not null)
+                return ValidationProblem("自动生成顺序号时无需填写逐行项目名称。");
+            var width = Math.Max(2, projects.Count.ToString().Length);
+            if (request.Name.Trim().Length + width + 1 > 120)
+                return ValidationProblem("项目名称前缀过长，无法追加顺序号。");
+            for (var index = 0; index < projects.Count; index++)
+                projects[index].Name = $"{request.Name.Trim()} {(index + 1).ToString($"D{width}")}";
+        }
+        else if (names is not null)
+        {
+            if (names.Any(name => string.IsNullOrWhiteSpace(name) || name.Length > 120))
+                return ValidationProblem("每个实验项目名称均不能为空，且不能超过 120 个字符。");
+            if (names.Count != projects.Count)
+                return ValidationProblem($"已填写 {names.Count} 个项目名称，但本次将生成 {projects.Count} 个实验项目；请确保每行对应一个项目。");
+            for (var index = 0; index < projects.Count; index++)
+                projects[index].Name = names[index];
+        }
+
         db.ExperimentProjects.AddRange(projects);
         await db.SaveChangesAsync(cancellationToken);
         return Created(string.Empty, new
@@ -645,6 +666,34 @@ public sealed class ExperimentsController(
         return NoContent();
     }
 
+    [HttpPut("batch/names")]
+    [Authorize(Roles = Managers)]
+    public async Task<ActionResult> UpdateProjectNames(
+        ExperimentProjectBatchNamesRequest request,
+        CancellationToken cancellationToken)
+    {
+        var ids = ValidateBulkProjectIds(request.ProjectIds);
+        if (ids is null) return ValidationProblem("请选择 1 至 100 个实验项目。");
+
+        var names = NormalizeBatchProjectNames(request.Names);
+        if (names is null || names.Count != ids.Count || names.Any(name => string.IsNullOrWhiteSpace(name) || name.Length > 120))
+            return ValidationProblem("请为每个已选实验项目填写一个名称，每行一个且数量必须一致。");
+
+        var projects = await ScopedProjects()
+            .Where(x => ids.Contains(x.Id))
+            .ToListAsync(cancellationToken);
+        if (projects.Count != ids.Count) return NotFound();
+        if (projects.Any(x => x.Status != ExperimentProjectStatus.Draft))
+            return ConflictProblem("批量修改名称只能包含草稿实验项目。");
+
+        var projectsById = projects.ToDictionary(x => x.Id);
+        for (var index = 0; index < ids.Count; index++)
+            projectsById[ids[index]].Name = names[index];
+
+        await db.SaveChangesAsync(cancellationToken);
+        return NoContent();
+    }
+
     [HttpDelete("batch")]
     [Authorize(Roles = Managers)]
     public async Task<ActionResult> DeleteProjects(
@@ -1494,6 +1543,12 @@ public sealed class ExperimentsController(
     private static string? Normalize(string? value) =>
         string.IsNullOrWhiteSpace(value) ? null : value.Trim();
 
+    private static List<string>? NormalizeBatchProjectNames(IReadOnlyList<string>? names)
+    {
+        if (names is null || names.Count == 0) return null;
+        return names.Select(name => name.Trim()).ToList();
+    }
+
     private ActionResult ConflictProblem(string detail) =>
         Conflict(new ProblemDetails
         {
@@ -1522,7 +1577,9 @@ public sealed record ExperimentProjectBatchRequest(
     [MaxLength(1000)] string? Description,
     [MaxLength(1000)] string? Requirements,
     DateOnly StartDate,
-    DateOnly EndDate)
+    DateOnly EndDate,
+    IReadOnlyList<string>? Names = null,
+    bool GenerateSequentialNames = false)
 {
     public ExperimentProjectRequest ForTeachingTask(Guid teachingTaskId) =>
         new(
@@ -1539,6 +1596,10 @@ public sealed record ExperimentProjectBatchRequest(
 public sealed record ExperimentProjectBulkRequest(
     [Required] IReadOnlyList<Guid> ProjectIds);
 
+public sealed record ExperimentProjectBatchNamesRequest(
+    [Required] IReadOnlyList<Guid> ProjectIds,
+    [Required] IReadOnlyList<string> Names);
+
 public sealed record ExperimentSessionRequest(
     Guid ClassroomId,
     DateOnly SessionDate,