您即將從本網站離開,並前往https://pclevinblog.pixnet.net/blog/post/314562166-javascript-string%E9%A1%9E-%E5%AD%97%E4%B8%B2%E6%90%9C%E5%B0%8Bindexof%28%E5%AD%97%E4%B8%B2%29%E5%8F%8Alastindex