pycharm 激活（JetBrains IDEA 系列产品通用激活方法）
1、打开激活窗口
2、选择 Activate new license with License server （用license server 激活）
3、在 License sever address 处填入 https://jetlicense.nss.im/
4、点击 Activate 进行认证
5、done！
或是，选择Activation code，复制下方激活码到输入框
D87IQPUU3Q-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激活码