diff --git a/app/api/controller/TeacherScheduleTimeController.php b/app/api/controller/TeacherScheduleTimeController.php
index dab1814..986871f 100644
--- a/app/api/controller/TeacherScheduleTimeController.php
+++ b/app/api/controller/TeacherScheduleTimeController.php
@@ -67,13 +67,15 @@ class TeacherScheduleTimeController extends BaseController
 
             foreach ($student_schedule as $k => &$v) {
 
-                if($v['studentSchedule']){
-                    $student = [];
+
+                if ($v['studentSchedule']) {
                     foreach ($v['studentSchedule'] as $k1 => $v1) {
-                        if($v1['is_publish']){
+                        if ($v1['is_publish']) {
                             $student[] = $v1['student_name'];
                         }
                     }
+                } else {
+                    $student[] = '';
                 }
 
                 $array[] = [
@@ -82,7 +84,7 @@ class TeacherScheduleTimeController extends BaseController
                     'time_on' => $v['time'],
                     'subject' => $v['english_name'],
                     'teacher_name' => $v['teacher_name'],
-                    'student_name' => implode(',', $student),
+                    'student_name' => implode(',', array_unique($student)),
                     'time_num' => $v['hour'] . '/h',
                 ];
                 $stu_nmae = $v['teacher_name'];
@@ -95,6 +97,8 @@ class TeacherScheduleTimeController extends BaseController
                 'table_time' => $month,
                 'data' => $array,
             ];
+
+
             $file_path = '/files/images/teacher_schedule/' . $month . "/{$request->teacher->id}/";
             $base = [
                 'border' => 10,//图片外边框
@@ -107,7 +111,7 @@ class TeacherScheduleTimeController extends BaseController
                 'filed_id_width' => 60,//序号列的宽度
                 'filed_name_width' => 120,//玩家名称的宽度
                 'filed_data_width' => 120,//数据列的宽度
-                'table_header' => ['', 'Week', 'Date', 'Time', 'Subject', 'Teacher', 'Student','Duration'],//表头文字
+                'table_header' => ['', 'Week', 'Date', 'Time', 'Subject', 'Teacher', 'Student', 'Duration'],//表头文字
                 'column_text_offset_arr' => [45, 70, 70, 90, 55, 65, 65, 65],//表头文字左偏移量
                 'row_text_offset_arr' => [50, 110, 90, 110, 90, 90, 90, 90],//数据列文字左偏移量
             ];
@@ -155,7 +159,7 @@ class TeacherScheduleTimeController extends BaseController
                 $sub = 0;
                 foreach ($item as $value) {
                     $sub++;
-                    imagettftext($img, $base['text_size'], 0, $base['column_x_arr'][$sub] - $base['row_text_offset_arr'][$sub], $border_top + $base['row_hight'] - 10, $text_coler, $base['font_ulr'], $value);//写入data数据
+                    imagettftext($img, $base['text_size'], 0, $base['column_x_arr'][$sub] - $base['row_text_offset_arr'][$sub], $border_top + $base['row_hight'] - 10, $text_coler, $base['font_ulr'], $value ?? '');//写入data数据
                 }
             }
             //计算标题写入起始位置
@@ -164,7 +168,7 @@ class TeacherScheduleTimeController extends BaseController
             $title_fout_width = $title_fout_box[2] - $title_fout_box[0];//右下角 X 位置 - 左下角 X 位置 为文字宽度
             $title_fout_height = $title_fout_box[1] - $title_fout_box[7];//左下角 Y 位置- 左上角 Y 位置 为文字高度
             //居中写入标题
-            imagettftext($img, $base['title_font_size'], 0, ($base['img_width'] - $title_fout_width) / 2, $base['title_height'], $text_coler, $base['font_ulr'], $params['title']);
+            imagettftext($img, $base['title_font_size'], 0, round(($base['img_width'] - $title_fout_width) / 2), $base['title_height'], $text_coler, $base['font_ulr'], $params['title']);
             //写入制表时间
             imagettftext($img, $base['text_size'], 0, $base['border'], $base['title_height'], $text_coler, $base['font_ulr'], 'Date：' . $params['table_time']);
             $save_path = $base['file_path'] . $params['file_name'];
@@ -177,11 +181,11 @@ class TeacherScheduleTimeController extends BaseController
             $url = getenv('SERVER_DOMAIN') . $file_path . $params['file_name'];
 
             return $this->json([
-                'code'=>ResponseCode::SUCCESS,
+                'code' => ResponseCode::SUCCESS,
                 'data' => $url,
             ]);
 
-        }catch (Exception $e){
+        } catch (Exception $e) {
             return $this->json([
                 'code' => ResponseCode::FAIL,
                 'msg' => $e->getMessage()
@@ -191,7 +195,6 @@ class TeacherScheduleTimeController extends BaseController
     }
 
 
-
     public function getWeek($date)
     {
 //        $week_array = array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");