diff --git a/application/common/Model/TaskMember.php b/application/common/Model/TaskMember.php
index 9b81de7..a8b4ec0 100644
--- a/application/common/Model/TaskMember.php
+++ b/application/common/Model/TaskMember.php
@@ -33,7 +33,10 @@ class TaskMember extends CommonModel
         }
         $currentMember = getCurrentMember();
         $taskExecutor = self::where(['is_executor' => 1, 'task_code' => $taskCode])->find(); //原执行者
-
+        if ($taskExecutor['member_code'] == $memberCode) {
+            //已经是本人
+            return true;
+        }
         self::update(['is_executor' => 0], ['task_code' => $taskCode]);
         if ($memberCode) {
             $hasJoined = self::where(['member_code' => $memberCode, 'task_code' => $taskCode])->find();