Before testing computer software, we should first follow the principle of software testing, that is, incomplete principle. Incomplete principle means that if the test is incomplete and there are many parts of immunity principle involved in the test process, it can help the software test. Because of the immunity of software testing factors, the test content that testers can complete is directly proportional to their immunity. If you want to make software testing more fluent and more effective, you need to follow these principles first, run these principles through the whole development process, and test continuously, rather than one-time test.