Update CommonController.class.php

Application/Home/Controller/CommonController.class.php

@@ -7,7 +7,7 @@ class CommonController extends BaseController {
     //保存
     public function qrcode(){
         Vendor('Phpqrcode.phpqrcode');
-        $url = I("url");
+        $url = urldecode($url) ? urldecode($url) : $url;
         $size = I("size") ? I("size") : 6;
         $object = new \QRcode();
         $object->png($url, false, 3 , $size, 2);             
@@ -28,4 +28,4 @@ class CommonController extends BaseController {
 
     }
 
-}
+}