MAC，IDEA快捷鍵

代碼補全
https://www.cnblogs.com/winner-0715/p/5247086.html
https://blog.csdn.net/shijiebei2009/article/details/44726433
IDEA
https://blog.csdn.net/alik20/article/details/54881003
MAC快捷鍵https://jingyan.baidu.com/article/08b6a591aac09614a909224f.html