Demand Description: When writing articles, it will often be modified after writing. Sometimes I will delete the previous writing, add new things, and then it is possible to restore the previous text, which may no longer exist in front of the text. The current document editing software generally does not support such functions. So if you develop such a system, you should be welcomed. System function: Similar source management system, you can refer to CVS, Wiki, VSS, etc. Task Arrangement: 1. Survey: Analyze the existing program framework, summarize. Analyze user needs and establish a detailed description. Time: 2 days. 1.5 hours a day. 2. Design: Perfect function design; simplest design.
