diff --git a/app/Console/Commands/UpdateUserNo.php b/app/Console/Commands/UpdateUserNo.php
index 2981c2e..22c0ea7 100755
--- a/app/Console/Commands/UpdateUserNo.php
+++ b/app/Console/Commands/UpdateUserNo.php
@@ -43,14 +43,14 @@ class UpdateUserNo extends Command
     public function handle()
     {
         // 已经开始的课程日期（所有历史数据处理）
-//        $dateList = Course::whereNotNull('start_date')
-//            ->where('start_date', '<=', date('Y-m-d'))
-//            ->orderBy('start_date')
-//            ->groupBy('start_date')
-//            ->pluck('start_date')
-//            ->toArray();
+        $dateList = Course::whereNotNull('start_date')
+            ->where('start_date', '<=', date('Y-m-d'))
+            ->orderBy('start_date')
+            ->groupBy('start_date')
+            ->pluck('start_date')
+            ->toArray();
         // 当日数据处理(日常定时任务)
-        $dateList = [date('Y-m-d')];
+        //$dateList = [date('Y-m-d')];
         foreach ($dateList as $date) {
             $courses = Course::with(['courseSigns' => function ($query) {
                 $query->where('status', 1);
@@ -59,14 +59,13 @@ class UpdateUserNo extends Command
                 ->get();
             $i = 1;
             // 编号前缀
-            $prefix = date('Ymd', strtotime($date));
             foreach ($courses as $course) {
                 foreach ($course->courseSigns as $sign) {
                     $user = User::find($sign->user_id);
                     if ($user->no) {
                         continue;
                     }
-                    $no = $prefix . str_pad($i, 3, '0', STR_PAD_LEFT);
+                    $no = $course->student_prefix . str_pad($i, 3, '0', STR_PAD_LEFT);
                     // 更新用户编号
                     $user->no = $no;
                     $user->save();
diff --git a/database/migrations/2025_09_26_113323_alert_courses_table.php b/database/migrations/2025_09_26_113323_alert_courses_table.php
new file mode 100644
index 0000000..b3a67c0
--- /dev/null
+++ b/database/migrations/2025_09_26_113323_alert_courses_table.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('courses', function (Blueprint $table) {
+            // 学生编号前缀
+            $table->string('student_prefix')->nullable()->comment('学生编号前缀');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('courses', function (Blueprint $table) {
+            //
+        });
+    }
+};