replace

https://www.baeldung.com/linux/vim-search-replace#:~:text=The%20simplest%20way%20to%20perform,the%20dot%20to%20replace%20it.&text=This%20will%20highlight%20the%20first,key%20to%20jump%20to%20it.

cgn 方法

就是说在下一个单词处执行上一个命令。首先：

/word

回车跳到一个单词上，然后

cgn

之后用 n. 进行快捷修改。

another method

:%s/aaa/bbb/g