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Performance can be understood as an indicator. In a certain environment, the system responds within a certain period of time. L performance from the user's perspective Response time of the software to user feedback. Note: If a user obtains a large amount of data, it will take a lot of time, but it takes a long time for the user to optimize data presentation (for example, to operate 1000 data records in the background, you can present 10 records firs

The first step, we need to install a phone software, as we described below the use of Skype to call it. In the second step, after we search and download a Skype in the App Store, we register an account with Skype and have a free call when we sign up. Step three, okay. After we've installed Skype, we'll be able to call. Note: Because Skype is a VoIP, we must be abl

BEIJING-firespider male 17:24:27 Teacher qingrun, could you ask me a question: if we find that we still need to further divide the components during the detailed design stage, should we add them in the architecture design at this time? Qingrun 17:28:36 Of course. This is necessary and a common solution. For example, if bugs and bugs are fixed in the code, incomplete function development is tested, and

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"Discussion" a topic that a person thinks is more important, and what operating system the programmer develops