您需要经常使用本文描述的技术添加或删除组件,并且会发现添加这些变更非常容易。
You frequently need to add or remove components and, using the techniques described in this article, you'll find it can be easy to incorporate these changes.
假设您经常添加和删除用户,这是一个可由操作员团队完成的任务。
Say you regularly add and remove users, a task that could be done by operator staff.
经常需要添加、删除或修改属性。
应用推荐