激活碼激活】
1.修改hosts文件
添加下面一行到hosts文件，目的是屏蔽掉Pycharm對激活碼的驗證
0.0.0.0 account.jetbrains.com
注：hosts文件路徑，Windows在C:\Windows\System32\drivers\etc\hosts，Linux在 /etc/hosts。Win下需要管理員權限打開。如果遇到權限問題，可將hosts文件先複製出來修改後再覆蓋原來的即可。
在hosts文件最後單獨一行加進去即可
2.複製下面的激活碼，填入激活碼框
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