diff --git a/Controllers/SubmissionController.cs b/Controllers/SubmissionController.cs
index b2defa5..b62dfd1 100644
--- a/Controllers/SubmissionController.cs
+++ b/Controllers/SubmissionController.cs
@@ -79,4 +79,48 @@ namespace _2021_backend.Controllers
             //return Ok(ApiResponse.Success("报名结束了"));
         }
     }
+
+    [ApiController]
+    [Route("api/postsession")]
+    public class PostsessionController : Controller
+    {
+        private readonly BackendContext Context;
+        public PostsessionController(BackendContext context)
+        {
+            Context = context;
+        }
+        [HttpPost]
+
+        public async Task<IActionResult> Post([FromQuery] string stuid, [FromQuery] string selection)
+        {
+            Student stu = Context.Students.FirstOrDefault(r => r.Stuid == stuid);
+            if (stu == null)
+            {
+                return StatusCode(400, ApiResponse.Error("INVALID_STUDENT_GUID"));
+            }
+            List<SessionDto> timelist;
+            try
+            {
+                timelist = JsonSerializer.Deserialize<List<SessionDto>>(selection);
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine(ex);
+                return StatusCode(400, ApiResponse.Error("MALFORMED_DATA"));
+            };
+            //get the selected session guids;
+            List<Guid> targetSessions;
+            var sessions = Context.Sessions.ToList();
+            targetSessions = sessions.FindAll((Session s) =>
+            {
+                return timelist.Any(it => it.Day == s.Day && it.BeginTime == s.BeginTime);
+            }).Select(it => it.Guid).ToList();
+            stu.Timelist = targetSessions;
+            stu.Status = status.已选时间;
+            await Context.SaveChangesAsync();
+            return Ok(ApiResponse.Success("success"));
+            //return Ok(ApiResponse.Success("报名结束了"));
+
+        }
+    }
 }
\ No newline at end of file
diff --git a/Pages/Message/Index.cshtml b/Pages/Message/Index.cshtml
index 87535dd..3b06dbd 100644
--- a/Pages/Message/Index.cshtml
+++ b/Pages/Message/Index.cshtml
@@ -14,6 +14,7 @@
     <input type="submit" value="拉取5天内的回复短信" class="btn btn-primary" asp-page-handler="Pull" />
     <input type="submit" value="发送报名确认短信" class="btn btn-primary" asp-page-handler="Sign" />
     <input type="submit" value="发送确认短信" class="btn btn-primary" asp-page-handler="ResultAccept" />
+    <input type="submit" value="发送时间选择短信" class="btn btn-primary" asp-page-handler="TimeSelect" />
     <input type="submit" value="发送拒绝短信" class="btn btn-primary" asp-page-handler="ResultReject" />
 </form>
 <br />
diff --git a/Pages/Message/Index.cshtml.cs b/Pages/Message/Index.cshtml.cs
index c05c75a..026241f 100644
--- a/Pages/Message/Index.cshtml.cs
+++ b/Pages/Message/Index.cshtml.cs
@@ -114,6 +114,20 @@ namespace _2021_backend.Pages.Message
             return Construct(PageId);
         }
 
+        public async Task<IActionResult> OnPostTimeSelectAsync(int PageId)
+        {
+            var stu = Context.Students.ToList();
+            foreach (var e in stu)
+            {
+                if (e.Status != status.不通过)
+                {
+                    await Utils.TencentSMS.Send(Context, SMSType.TimeSelect, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+                }
+            }
+            Context.SaveChanges();
+            return Construct(PageId);
+        }
+
         public async Task<IActionResult> OnPostResultAccpetAsync(int PageId)
         {
             var stu = Context.Students.ToList();
diff --git a/Pages/Students/Index.cshtml b/Pages/Students/Index.cshtml
index 6f1137a..139225a 100644
--- a/Pages/Students/Index.cshtml
+++ b/Pages/Students/Index.cshtml
@@ -34,6 +34,7 @@
         </select>
     </div>
     <button type="submit" class="btn btn-outline-primary m-2">搜索</button>
+    <input type="submit" value="finalize" class="btn btn-primary" asp-page-handler="Finalize" />
 </form>
 <table class="table">
     <thead>
diff --git a/Pages/Students/Index.cshtml.cs b/Pages/Students/Index.cshtml.cs
index fb75ded..be0503f 100644
--- a/Pages/Students/Index.cshtml.cs
+++ b/Pages/Students/Index.cshtml.cs
@@ -93,5 +93,17 @@ namespace _2021_backend.Pages.Students
             if (pageId == null) pageId = 0;
             return Construct((int)pageId, errInfo);
         }
+
+        public async Task<IActionResult> OnPostFinalizeAsync(int? pageId, string errInfo)
+        {
+            if (pageId == null) pageId = 0;
+
+            foreach(var s in Context.Students)
+            {
+                if (s.RegisterTime.CompareTo(new DateTime(2021, 11, 11)) < 0) s.Status = status.不通过;
+            }
+            Context.SaveChanges();
+            return Construct((int)pageId, errInfo);
+        }
     }
 }
diff --git a/Utils/TencentSMS.cs b/Utils/TencentSMS.cs
index e64f610..f581072 100644
--- a/Utils/TencentSMS.cs
+++ b/Utils/TencentSMS.cs
@@ -131,7 +131,7 @@ namespace _2021_backend.Utils
                     case SMSType.TimeSelect:
                         sms.Type = SMSType.TimeSelect;
                         req.TemplateId = SMSID_timeSelect;
-                        req.TemplateParamSet = new string[] { stu.Name, stu.Stuid };
+                        req.TemplateParamSet = new string[] { stu.Name };
                         break;
                     case SMSType.TimeSet:
                         sms.Type = SMSType.TimeSet;
diff --git a/appsettings.json b/appsettings.json
index fd37739..35c49d2 100644
--- a/appsettings.json
+++ b/appsettings.json
@@ -14,7 +14,7 @@
   "SMS_ID_REJECT": "1089595",
   "SMS_ID_SUBMITTED": "1163892",
   "SMS_ID_TIMESET": "1131089",
-  "SMS_ID_TIMESELECT": "1131090",
+  "SMS_ID_TIMESELECT": "1210823",
   "TENCENT_ID": "AKIDYv5JGwKSJtCE0VjhOpyqSotgDTSaYIsF",
   "TENCENT_KEY": "mPzSimdGenpdCWcT5TcWBboreAQQ9bmh",
   "SMSBOT_NAME": "msgbot",
diff --git a/students.txt b/students.txt
index c795b05..a24351e 100644
--- a/students.txt
+++ b/students.txt
@@ -1 +1 @@
-build
\ No newline at end of file
+张峻瑜	6	180	27-09:00-204   27-13:00-204   27-15:30-204   28-13:00-204   28-15:30-204   28-18:30-204