vim中对调某特定字符两边的内容

如如下文本：

awerawedaew -> brthrtywertqwe aoyuilyilyi -> bsdfasfweghtyh asdfasdfasef -> basdfasdf

应用:

:%s/\(.*\) -> \(.*\)/\2 -> \1

结果：

brthrtywertqwe -> awerawedaew bsdfasfweghtyh -> aoyuilyilyi basdfasdf -> asdfasdfasef

\( \) ：组 \1 ：引用