*session存储登录-退出登录
*显示并编辑可编辑信息，修改密码
x上传头像
x个人主页
*根据学号判断学期，并实现且换不同时间学期
*课程基本信息并可查看详细信息
*选课实时更新，并判断是否与已选课程冲突等
x添加日程，蹭课等
*展示课程详细信息包括发展方向以及课程评价
*根据开课学院以及学生学院显示专业推荐
*根据课程类型显示不同是否可选状态，实现选课收藏功能
*可多选 选课/收藏。只能单个取消
*选课同时更新选课人数，
*前端el-table自带模糊查询（根据用户体验性考虑，查询较多，暂时采用前端查询，对多数据不友好，后期改进）
x分页，后台查询操作
*自主评分，并实时汇总到总评分
*标签代替评论，点踩操作。可添加删除标签（只有自己添加的标签且别人未点赞才可删除）
*自主购买/取消购买
*书籍详细信息中评分
*把职业方向和课程、书籍联系起来
*根据书籍类型和学生登录专业，显示专业推荐
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.