xxxxxxxxxx<html><head> <meta charset="utf-8"> <title>W3Cschool(w3cschool.cn)</title> <base id="htmldom" target="_blank" href="http://www.w3cschool.cn/jsref/"></head><body><p>所有链接的基链接:<script>document.write(document.getElementById("htmldom").target);</script></p></body></html>