diff --git a/app/Console/Commands/UpdateUserNo.php b/app/Console/Commands/UpdateUserNo.php
index 4984525..1a14836 100755
--- a/app/Console/Commands/UpdateUserNo.php
+++ b/app/Console/Commands/UpdateUserNo.php
@@ -57,42 +57,39 @@ class UpdateUserNo extends Command
     protected function updateUserNo()
     {
         $this->info('开始更新学号...');
-        // 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();
-        // 当日数据处理(日常定时任务)
-        $dateList = [date('Y-m-d')];
-        foreach ($dateList as $date) {
-            $courses = Course::with([
-                'courseSigns' => function ($query) {
-                    $query->where('status', 1);
-                }
-            ])->where('start_date', $date)
-                ->whereNotNull('student_prefix')
-                ->orderBy('start_date')
-                ->get();
+        $today = date('Y-m-d');
+
+        // 获取所有已开始且有学号前缀的课程
+        $courses = Course::with([
+            'courseSigns' => function ($query) {
+                $query->where('status', 1);
+            }
+        ])->whereNotNull('start_date')
+            ->where('start_date', '<=', $today)
+            ->whereNotNull('student_prefix')
+            ->orderBy('start_date')
+            ->get();
+
+        $totalUpdated = 0;
+        foreach ($courses as $course) {
             $i = 1;
             // 编号前缀
-            foreach ($courses as $course) {
-                foreach ($course->courseSigns as $sign) {
-                    $user = User::find($sign->user_id);
-                    if ($user->no) {
-                        continue;
-                    }
-                    $no = $course->student_prefix . str_pad($i, 3, '0', STR_PAD_LEFT);
-                    // 更新用户编号
-                    $user->no = $no;
-                    $user->save();
-                    $this->info('学号: ' . $no);
-                    $i++;
+            foreach ($course->courseSigns as $sign) {
+                $user = User::find($sign->user_id);
+                // 只要用户没有学号（包括 null 和空字符串），都需要更新
+                if ($user->no) {
+                    continue;
                 }
+                $no = $course->student_prefix . str_pad($i, 3, '0', STR_PAD_LEFT);
+                // 更新用户编号
+                $user->no = $no;
+                $user->save();
+                $this->info('课程: ' . ($course->name ?? $course->id) . ', 学号: ' . $no . ', 用户: ' . ($user->name ?? $user->id));
+                $i++;
+                $totalUpdated++;
             }
         }
-        $this->info('学号更新完成');
+        $this->info('学号更新完成，共更新 ' . $totalUpdated . ' 个学号');
     }
 
     /**