修改bug

Application/Admin/Controller/TestingResourceController.class.php

@@ -390,7 +390,7 @@ class TestingResourceController extends ThinkController
             $testingResourceService = new TestingResourceService();
             $testingResourceService->bindRole($params);
             return $this->ajaxReturn(['status' => 1, 'message' => '绑定成功']);
-        } catch (\Throwable $th) {
+        } catch (\Throwable $e) {
             return $this->ajaxReturn(['status' => 0, 'message' => $e->getMessage()]);
         }
     }
@@ -402,7 +402,7 @@ class TestingResourceController extends ThinkController
             $testingResourceService = new TestingResourceService();
             $testingResourceService->unbindRole($bindingId);
             return $this->ajaxReturn(['status' => 1, 'message' => '解绑成功']);
-        } catch (\Throwable $th) {
+        } catch (\Throwable $e) {
             return $this->ajaxReturn(['status' => 0, 'message' => $e->getMessage()]);
         }
     }