一、IntelliJ IDEA免費啟用碼線上提取

下面的字母部分全部都是啟用碼，全部選中複製貼上到IDEA即可。

下面的啟用碼失效時請採用備用方案：關注微信公眾號【Java團長】，傳送【啟用碼】即可獲取最新有效的免費啟用碼。

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二、JetBrains旗下付費軟體通用註冊碼

1、新增斷點並單擊左上角的除錯圖示

2、跳進去，下一行是列表項

3、使用封裝類時，有時按F8鍵將進入函式的底層實現

4、您可以按此鍵跳出端電流除錯，停止斷點除錯

5、從一個斷點跳到另一個斷點F9