我觉得这样可以:

/style="[a-zA-Z0-9:;.s()-,]*"/gi

如果您只想替换某些部分，也可以将它们放入捕获组中

You could also put these in capturing groups, if you wanted to replace some parts only

/(style=")([a-zA-Z0-9:;.s()-,]*)(")/gi

工作示例: http://regexr.com?2up30