pyCharm2019最新啟用碼，親測可用（win, ubuntu, mac）

pyCharm2019最新啟用碼，親測可用。啟用步驟如下：

####1. 修改hosts檔案：

新增下面一行到hosts檔案，目的是遮蔽掉Pycharm對啟用碼的驗證
**0.0.0.0 account.jetbrains.com **

• windwos系統hosts檔案路徑為：C:\Windows\System32\drivers\etc
  如果遇到許可權問題，可將hosts檔案先複製出來修改後再覆蓋原來的即可。
• Linux和mac的hosts檔案路徑為：/etc
  在命令列輸入

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修改後的hosts檔案如下：

####2. 開啟PyCharm，選擇Activate code（用啟用碼啟用）

####3. 複製下載啟用碼，填入啟用碼框。

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複製上面的啟用碼，填入啟用碼框，點選 OK 進行認證。目前這個啟用碼有效期至2019年7月29日。

####4. 如果出現以下彈框，這說明你沒有修改hosts檔案，或說沒生效