hexo : File C:\Users\     \AppData\Roaming\npm\hexo.ps1 cannot be loaded because running scripts is disabled on this
system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ hexo

我用的powershell，换成cmd自己就好了。。。。