IDEA一种很简单的方法进行：
Windows系统：
hosts文件在C:\Windows\System32\drivers\etc目录下，如果没有hosts文件请忽略
Linux和MAC系统：hosts文件在/etc目录
https://www.jianshu.com/p/e2a935856ebd
li@hp:~$ sudo gedit /etc/hosts
修改host文件实例：
https://www.cnblogs.com/Michelle20180227/p/10563977.html
文件末尾添加：
0.0.0.0 account.jetbrains.com
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
0.0.0.0 account.jetbrains.com
win版不行：最后找到
http://idea.medeming.com/jet/?utm_source=hacpai.com
