首先进入cmd,输入powershell指令,如图
Prompt should now start with "PS " 然后run
iex (new-object net.webclient).downloadstring('https://get.scoop.sh')
![](https://img2018.cnblogs.com/blog/1495539/201810/1495539-20181009050011649-882363001.png)
Scoop 安装后,你就可以在控制台执行如下命令安装 Yarn 了:
![](https://img2018.cnblogs.com/blog/1495539/201810/1495539-20181009050252280-625199271.png)
如何查看powershell的版本号,在命令行输入$PSVersionTable.PSVersion
![](https://img2018.cnblogs.com/blog/1495539/201810/1495539-20181009050753618-1001061022.png)
major代表当前已安装版本号