选项卡制作学习

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>New Web Project</title><style type="text/css">#contents div{width:230px;height:300px;background-color: #222;color:#FFFFFF;border:1px solid #DDDDDD;display:none;}.active{background-color: red;}</style><script type="text/javascript">window.onload=function(){var Btns=document.getElementById('btns');var adiv=document.getElementById('contents');var buttons=btns.getElementsByTagName('input');var ds=adiv.getElementsByTagName('div');for(var i=0;i<buttons.length;i++){buttons[i].index=i;buttons[i].onclick=function(){for(var j=0;j<buttons.length;j++){buttons[j].className='';ds[j].style.display='none';}this.className='active';ds[this.index].style.display='block';};}};</script></head><body><div id="main"><div id="btns"><input class="active" type="button" value="中国" /><input type="button" value="美国" /><input type="button" value="英国" /><input type="button" value="日本" /></div><div id="contents"><div style="display: block;">中国</div><div>美国</div><div>英国</div><div>日本</div></div></div></body></html>

运行结果图：

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