1、修改hosts文件：
添加下面一行到hosts文件，目的是屏蔽掉Pycharm对激活码的验证，将0.0.0.0 account.jetbrains.com复制到hosts文件的最下面，保存之后关闭hosts
windows系统hosts文件路径为：C:\Windows\System32\drivers\etc
linux和mac的hosts文件路径为：/etc
2、选择Activation code，复制下方激活码到输入框
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