!(https://oscimg.oschina.net/oscnet/c181999ed6f74595b25b2123145bc821.jpg)!(https://oscimg.oschina.net/oscnet/0478d5b3f801430ca9f5a2ad0e29d8f2.jpg)编辑| 小匀来

1\.内容回顾!(https://oscimg.oschina.net/oscnet/ab5776dc4428b63ab33208c1ca0d0a2f5ce.jpg)!(https://oscimg.oschina.net/oscnet/65ef43693eb11c302d92f756bcf69e3469b.jpg)

总览!(https://oscimg.oschina.net/oscnet/up86206a0ad4e65e329fb8213f305b6d491c0.png)准备工作Dos命令!(https://oscimg.oschina.net/oscnet/upc54419e18804ac213c44d9f46

!(https://pic4.zhimg.com/80/v2ef0f8f824dff45564d339384127c5d17_hd.jpg)!Alt(https://imgblog.csdnimg.cn/20200121133818900.pngpic_center)关于NASA的10条编程规则，他们曾表示：这些规则的作用就像汽车上

!(https://oscimg.oschina.net/oscnet/6efe009e8d921bf9bbd3c257f6d77bc0fb7.png)Redis键(key)Redis键命令用于管理redis的键。DELkey该命令用于在key存在时删除key。127.

!photo1589127383386270465a13dea.jpeg(https://oscimg.oschina.net/oscnet/up0f4d8ab934dd686cbabd3c845d9923b9.jpg"photo1589127383386270465a13dea.jpeg")如果文章和笔记能带您一丝帮助或者启发，请不要

!(https://oscimg.oschina.net/oscnet/up190da3d6107e3381bf309216068b6d4ecc9.JPEG)除了ApacheECharts5系列教程（3）交互能力(https://my.oschina.net/echarts/blog/4944131)之外，我们也非常重视开发者的体验。

!(https://oscimg.oschina.net/oscnet/3a2cb8a867180be77ced8b4d4d921c8aed7.png)版本信息使用Redis源码版本(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fgithub.com%2FMicrosoft

!头图.png(https://ucc.alicdn.com/pic/developerecology/59ef8579ed094be3a9b2d29f5984d422.png)作者|张翼飞 阿里云技术专家来源|阿里巴巴云原生公众号(https://www.oschina.net/action/GoToLink?urlhttps%3A

!0745C6871851464a928B2B0DE9FB5D56.png(https://ucc.alicdn.com/pic/developerecology/fc86841df8784236af15827f90d02e80.png)<aname"1"</a前言首先介绍下在本文出现的几个比较重要的概念：函