答题完毕才算一次

addons/exam/controller/Paper.php

@@ -140,9 +140,9 @@ class Paper extends Base
         //次数限制
         if ($paper['limit_count'] > 0){
 
-            $my_count = Db::name('exam_grade')->where('user_id', $user_id)->where('paper_id', $paper_id)->count();
+            $my_count = Db::name('exam_grade')->where('user_id', $user_id)->where('paper_id', $paper_id)->where('status',2)->count();
             if($my_count >= $paper['limit_count']) {
-                $this->error('该试卷您的考试次数已达上限');
+                $this->error('在该科普中您的答题次数已达上限');
             }
         }