说明：  这是一个软件测试的论文作业，主要写的是junit的安装过程和使用过程，里面由一个测试用例以及其用例结果，是我们的课程作业。希望对大家由帮助。
(This is a software testing paper operations, primarily to write the JUnit installation process and use of the process, which by a test case, as well as the results of its use case is our coursework. I hope all of you from helping.)