I know this is easy in Cocoa. Not sure if it is possible in Safari.
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
回答1:
You can't change safari. It's not possible.
回答2:
That's not entirely accurate. Upon some research I discovered that if you set the input's type attribute to "search" for example, the Go button will read "Search":
Mobile Safari - Input field submit button
This is visible in mobile Yahoo and mobile Google.
