下载过程：
1.打开winrar官网：https://www.win-rar.com
2.点击下载winrar按钮，如上图所示
3.进入下一页面，点击下载按钮即可完成下载过程
注册过程：https://jingyan.baidu.com/article/f00622282484befbd2f0c847.html
1.新建文本文档，输入一下内容，并把它命名为“rarreg.key”
RAR registration data
Federal Agency for Education
1000000 PC usage license
UID=b621cca9a84bc5deffbf
6412612250ffbf533df6db2dfe8ccc3aae5362c06d54762105357d
5e3b1489e751c76bf6e0640001014be50a52303fed29664b074145
7e567d04159ad8defc3fb6edf32831fd1966f72c21c0c53c02fbbb
2f91cfca671d9c482b11b8ac3281cb21378e85606494da349941fa
e9ee328f12dc73e90b6356b921fbfb8522d6562a6a4b97e8ef6c9f
fb866be1e3826b5aa126a4d2bfe9336ad63003fc0e71c307fc2c60
64416495d4c55a0cc82d402110498da970812063934815d81470829275
2.将这个文档剪切到WinRAR安装目录
3.打开WinRAR，依次单击“帮助”“关于WinRAR”，发现已注册成功。教程结束