每日案例3

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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
    <title>每日案例</title>
        <style type="text/css">
        *{margin: 0;padding:0;}
        .big{margin: 20px 400px;}
        input{margin: 20px auto;}
        .box{width: 500px;height: 333px;background: url(http://m1.img.srcdd.com/farm4/d/2014/0821/15/E86FC29B93DE3A534A25F0037AB56259_B1280_1280_500_333.jpeg) no-repeat;position: relative;}
        a{width: 45px;height: 38px;display: block;background: #31004a;color: #fff;line-height: 38px;text-align: center;font-size: 24px;text-decoration: none;font-weight: bold;filter:alpha(opacity:30);opacity: 0.3;}
        a:hover{filter:alpha(opacity:80);opacity: 0.8}
        .left{position: absolute;top: 150px;left: 30px;}
        .right{position: absolute;top: 150px;right: 30px;}
        p,strong{width: 500px;height: 32px;background: #606060;line-height: 32px;text-align: center;color: #fff;filter:(opacity:30);opacity: 0.9;position: absolute;}
        p{top: 0}
        strong{bottom:0;font-weight: normal;}
        #img1{width:500px;height: 333px;}
        span{position: absolute;width: 400px;height: 30px;line-height: 30px;text-align: center;top: -25px;left: 0;font-family: "微软雅黑";}
        </style>
        <script type="text/javascript">
        window.onload=function(){
            var oP=document.getElementById('p1');
            var oStrong=document.getElementById('text');
            var oNext=document.getElementById('right1');
            var oPrev=document.getElementById('left1');
            var oImg=document.getElementById('img1');
            var aBtn=document.getElementsByTagName('input');
            var arrUrl=['http://m1.img.srcdd.com/farm4/d/2014/0821/15/E86FC29B93DE3A534A25F0037AB56259_B1280_1280_500_333.jpeg','http://m3.img.srcdd.com/farm5/d/2014/0821/15/54ABBEFCCC59B1CCA1C784330558B161_B1280_1280_500_333.jpeg','http://m2.img.srcdd.com/farm5/d/2014/0821/15/B07314A517906738D61B8A91BB28C756_B1280_1280_500_333.jpeg','http://m2.img.srcdd.com/farm5/d/2014/0821/15/F59226553539AD59A3F0B10F2E3BE230_B1280_1280_500_333.jpeg','http://m2.img.srcdd.com/farm5/d/2014/0821/15/E1ED0ADB8146F9AE638694214B26879B_B1280_1280_500_333.jpeg'];
            var arrText=['如果没有回应那就不是爱情 ','我为什么喜欢独自旅行 ','关于版本及购买  ','健身教练教我的事 ','张佳玮身上不为人知的超能力 '];
            var num=0;
            var onOff=true;
            aBtn[0].onclick=function(){onOff=true;document.getElementsByTagName('span')[0].innerHTML='列表循环';};
            aBtn[1].onclick=function(){onOff=false;document.getElementsByTagName('span')[0].innerHTML='顺序循环';};
            function fnTab(){
                oStrong.innerHTML=arrText[num];
                oP.innerHTML=num+1+'/'+arrText.length;
                oImg.src=arrUrl[num];
            }
            fnTab();
            oPrev.onclick=function(){
                num--;
                if (num==-1) {
                    if (onOff) {
                        num=arrText.length-1
                    }else{
                        alert("已经是最后一张");
                        num=0;
                    }
                }
                fnTab();
            }
            oNext.onclick=function(){
                num++;
                if (num==arrText.length) {
                    if (onOff) {
                        num=0;
                    }else{
                        alert("已经是最后一张");
                        num=arrText.length-1;
                    }
                }
                fnTab();
            }


        }
        </script>
</head>
<body>
    <div class="big">
        <input type='button' value='循环切换'/>
        <input type='button' value='顺序切换'/>
        <div class="box"><span>列表循环</span>
        <p id="p1">1/5</p>
        <a id="left1" class="left" href="javascript:"><</a>
        <a id="right1" class="right" href="javascript:">></a>
        <strong id="text">如果没有回应那就不是爱情</strong>
        <img id="img1"/>
    </div>
    </div>
</body>
</html>

posted @ 2014-08-24 00:01  庄昌宽  阅读(173)  评论(0编辑  收藏  举报