code: public static function delRuntime($path = '/', $self = false)
      {
          // 真实路径
          $path_runtime = realpath(RUNTIME_PATH);
          $path_list = realpath(RUNTIME_PATH . $path);
          
          // 判断越界
          if (strpos($path_list, $path_runtime) === false) {
              return false;
          }
          
          // 删除文件
          try {
              FileManager::delFile($path_list, $self);
              
              return true;
          } catch (\Exception $e) {
              return false;
          }
      }
docs: 删除缓存
  
  @param string $path
  @return boolean