Util — Utility classes for such tasks as string manipulation, cookie management, data manipulation, deferred action support, and callback support.
ut il—字符串操作、cookie管理、数据操作、延迟动作支持和回调支持等任务的实用程序类。
2
The utility model adopts the picture monitoring mode, so the data amount is reduced, the requirement for the bandwidth is reduced and the storage space is reduced for the picture management center.