标签:c style class blog code java
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | <!DOCTYPE html><head>    <meta http-equiv="Content-Type"content="text/html; charset=utf-8"/>    <title></title>    <script type="text/javascript">        window.onload = function() {            varoUl = document.getElementById("ul1");            varaLi = oUl.getElementsByTagName("li");            for(vari = 0; i < aLi.length; i++) {                if(aLi[i].className == "box") {                    aLi[i].style.background = "red";                }            }        }        //封装了一个方法,通过class选取元素        functiongetByClass(oParent, sClss) {            varaResult = [];            varaEle = oParent.getElementsByTagName("*");            for(vari = 0; i < aEle.length; i++) {                if(aEle[i].className == "sClss") {                    aEle[i].style.background = "red";                    aResult.push(aEle[i]);                }            }        }    </script></head><body>    <ul id="ul1">        <li class="box"></li>        <li></li>        <li class="box"></li>        <li></li>        <li class="box"></li>        <li></li>        <li class="box"></li>        <li class="box"></li>    </ul>    <!--        元素属性的操作        第一种:oDiv.style.display="none";        第二种:oDiv.style["display"]="none";        第三种:Dom方式        Dom方式操作元素的属性        获取:getAttribute(名称);//99%一般用不着他        设置:setAttribute(名称,值);        删除:removeAttribute(名称);        用className选择元素        --></body></html> | 
Javascript通过className选择元素,布布扣,bubuko.com
标签:c style class blog code java
原文地址:http://www.cnblogs.com/alphafly/p/3763888.html