客户端代码拉取调整

@@ -291,9 +291,13 @@ public function getRandInquiryText(Request $request)
     public function pullCode(Request $request)
     {
         $command = "cd /www/wwwroot/self_site && ./pull_custom_code.sh";
-        shell_exec($command);
+        $resp = shell_exec($command);
+        if ($resp == null){
+            return $this->error("代码拉取失败");
+        }else{
             return $this->success();
         }
+    }
 
     /**
      * @param $url