说明：  在敏捷开发中，测试可以在各个方面发挥作 用。事实上，不同类型的测试可以在敏捷开发中 扮演不同的角色。为了便于讨论测试角色，我们 把“敏捷开发”简要地概括为： “缩短进行操作和获得反馈之间的时间差。 ”
(In agile development, testing can play a role in all aspects. In fact, different types of tests in agile development can play different roles. To test the role to facilitate the discussion, we have the " agile development" briefly summarized as follows: " to shorten the operation and the time difference between the feedback received." )