问题跟踪记录

1. redis缓存机制 --done https://www.cnblogs.com/iknow-manage/articles/17171313.html

redis的数据类型有哪些？应用场景有哪些？

redis缓存的读写策略，常见问题有哪些，怎么解决？--done https://www.cnblogs.com/iknow-manage/articles/17171313.html

高并发下redis有哪些问题？--done https://www.cnblogs.com/iknow-manage/articles/17171313.html

redis的key过期了是怎么清理的？ --done https://www.cnblogs.com/iknow-manage/articles/17171313.html