课程 \
JavaScript进阶篇
7-22 数组排序sort()
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Array对象 </title>
<script type="text/javascript">
function sortNum(a,b) {
return a - b;
}
var myarr = new Array("80","16","50","6","100","1");
document.write(myarr.sort(sortNum));;
</script>
</head>
<body>
</body>
</html>
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7-23 编程练习
<!DOCTYPE HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>系好安全带,准备启航</title>
<script type="text/javascript">
var currentDate = new Date();
var weekday = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
document.write(
currentDate.getFullYear() + "年" +
(currentDate.getMonth() + 1) + "月" +
currentDate.getDate() + "日" + " " +
weekday[currentDate.getDay()]
);
//成绩是一长窜的字符串不好处理，找规律后分割放到数组里更好操作哦
var scoreStr = "小明:87;小花:81;小红:97;小天:76;小张:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
var sourceArr = sorceStr.split(";");
alert(sourceArr);//test
//从数组中将成绩撮出来，然后求和取整，并输出。
</script>
</head>
<body>
</body>
</html>
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8-3 计时器setInterval()
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>定时器</title>
<script type="text/javascript">
var attime;
function clock(){
var time=new Date();
attime=time.getHours()+":"+time.getMinutes()+":"+time.getSeconds();
document.getElementById("clock").value = attime;
}
setInterval(clock,100)
</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50" />
</form>
</body>
</html>
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8-5 计时器setTimeout()
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>计时器</title>
<script type="text/javascript">
var num=0;
function startCount() {
document.getElementById('count').value=num;
num=num+1;
setTimeout("startCount()",1000);
}
setTimeout("startCount()",1000);
</script>
</head>
<body>
<form>
<input type="text" id="count" />
</form>
</body>
</html>
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8-6 取消计时器clearTimeout()
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>计时器</title>
<script type="text/javascript">
var num=0;
var i;
function startCount(){
document.getElementById('count').value=num;
num=num+1;
i=setTimeout("startCount()",1000);
}
function stopCount(){
clearTimeout(i);
}
</script>
</head>
<body>
<form>
<input type="text" id="count" />
<input type="button" value="Start" onClick="startCount()" />
<input type="button" value="Stop" onClick="stopCount()" />
</form>
</body>
</html>
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8-7 History 对象
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>History对象</title>
</head>
<script type="text/javascript">
var HL = window.history.length ;
document.write(HL);
</script>
<body>
</body>
</html>
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8-8 返回前一个浏览的页面
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script type="text/javascript">
function GoBack() {
window.history.back();
}
</script>
</head>
<body>
点击下面的锚点链接，添加历史列表项:
<br />
<a href="#target1">第一个锚点</a>
<a name="target1"></a>
<br />
<a href="#target2">第二个锚点</a>
<a name="target2"></a>
<br /><br />
使用下面按钮，实现返回前一个页面:
<form>
<input type="button" value="返回前一个页面" onclick="GoBack();" />
</form>
</body>
</html>
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8-10 返回浏览历史中的其他页面
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<script type="text/javascript">
function GoBack() {
}
function GoForward() {
}
</script>
<body>
点击下面的锚点链接，添加历史列表项:
<br />
<a href="#target1">第一个锚点</a>
<a name="target1"></a>
<br />
<a href="#target2">第二个锚点</a>
<a name="target2"></a>
<br /><br />
使用下面按钮，实现返回前或下一个页面:
<form>
<input type="button" value="返回前一个页面" onclick="GoBack();" />
<input type="button" value="返回下一个页面" onclick="GoForward();" />
</form>
</body>
</html>
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8-11 Location对象
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>location</title>
</head>
<script type="text/javascript">
</script>
<body>
</body>
</html>
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8-12 Navigator对象
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<script type="text/javascript">
</script>
<body>
</body>
</html>
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9-4 区别getElementByID,getElementsByName,getElementsByTagName
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head>
<body>
<form>
请选择你爱好:<br>
<input type="checkbox" name="hobby" id="hobby1"> 音乐
<input type="checkbox" name="hobby" id="hobby2"> 登山
<input type="checkbox" name="hobby" id="hobby3"> 游泳
<input type="checkbox" name="hobby" id="hobby4"> 阅读
<input type="checkbox" name="hobby" id="hobby5"> 打球
<input type="checkbox" name="hobby" id="hobby6"> 跑步 <br>
<input type="button" value = "全选" onclick = "checkall();">
<input type="button" value = "全不选" onclick = "clearall();">
<p>请输入您要选择爱好的序号，序号为1-6:</p>
<input id="wb" name="wb" type="text" >
<input name="ok" type="button" value="确定" onclick = "checkone();">
</form>
<script type="text/javascript">
function checkall(){
var hobby = document.getElementsByTagName("input");
// 任务1
for(var i=0;i<hobby.length;i++)
{
hobby[i].checked = true;
}
}
function clearall(){
var hobby = document.getElementsByName("hobby");
// 任务2
for(var i=0;i<hobby.length;i++)
{
hobby[i].checked = false;
}
}
function checkone(){
var j=document.getElementById("wb").value;
// 任务3
var hobby = document.getElementById("hobby"+j);
hobby.checked = true;
}
</script>
</body>
</html>
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9-5 getAttribute()方法
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>getAttribute()</title>
</head>
<body>
<p id="intro">课程列表</p>
<ul>
<li title="第1个li">HTML</li>
<li>CSS</li>
<li title="第3个li">JavaScript</li>
<li title="第4个li">Jquery</li>
<li>Html5</li>
</ul>
<p>以下为获取的不为空的li标签title值:</p>
<script type="text/javascript">
var con=document.getElementsByTagName("li");
for (var i=0; i< con.length;i++){
var text=con[i].getAttribute("title");
if(text!=null)
{
document.write(text+"<br>");
}
}
</script>
</body>
</html>
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9-6 setAttribute()方法
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<body>
<p id="intro">我的课程</p>
<ul>
<li title="JS">JavaScript</li>
<li title="JQ">JQuery</li>
<li title="">HTML/CSS</li>
<li title="JAVA">JAVA</li>
<li title="">PHP</li>
</ul>
<h1>以下为li列表title的值,当title为空时，新设置值为"WEB前端技术":</h1>
<script type="text/javascript">
var Lists=document.getElementsByTagName("li");
for (var i=0; i<Lists.length;i++)
{
var text=Lists[i].getAttribute("title");
document.write(text +"<br>");
if(text=="")
{
Lists[i].setAttribute("title","WEB前端技术")
document.write(Lists[i].getAttribute("title")+"<br>");
}
}
</script>
</body>
</html>
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9-8 访问子节点childNodes
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<body>
<div>
javascript
<p>javascript</p>
<div>jQuery</div>
<h5>PHP</h5>
</div>
<script type="text/javascript">
var x=document.getElementsByTagName("div")[0].childNodes;
for(var i=0;i<x.length;i++)
{
document.write("第"+(i+1)+"个节点的值是："+x[i].nodeValue+"<br />");
document.write("第"+(i+1)+"个节点的名称是："+x[i].nodeName+"<br />");
document.write("第"+(i+1)+"个节点的属性是："+x[i].nodeType+"<br />");
document.write("<br />");
}
</script>
</body>
</html>
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9-10 访问父节点parentNode
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<body>
<ul id="con">
<li id="lesson1">javascript
<ul>
<li id="tcon"> 基础语法</li>
<li>流程控制语句</li>
<li>函数</li>
<li>事件</li>
<li>DOM</li>
</ul>
</li>
<li id="lesson2">das</li>
<li id="lesson3">dadf</li>
<li id="lesson4">HTML/CSS
<ul>
<li>文字</li>
<li>段落</li>
<li>表单</li>
<li>表格</li>
</ul>
</li></ul>
<script type="text/javascript">
var mylist = document.getElementById("tcon");
document.write(mylist.parentNode.parentNode.parentNode.lastChild.innerHTML);
</script>
</body>
</html>
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9-11 访问兄弟节点
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>nextSibling</title>
</head>
<body>
<ul id="u1">
<li id="a">javascript</li>
<li id="b">jquery</li>
<li id="c">html</li>
</ul>
<ul id="u2">
<li id="d">css3</li>
<li id="e">php</li>
<li id="f">java</li>
</ul>
<script type="text/javascript">
function get_nextSibling(n){
var x=n.nextSibling;
while (x && x.nodeType!=1){
x=x.nextSibling;
}
return x;
}
var x=document.getElementsByTagName("li")[0];
document.write(x.nodeName);
document.write(" = ");
document.write(x.innerHTML);
var y=get_nextSibling(x);
if(y!=null){
document.write("<br />nextsibling: ");
document.write(y.nodeName);
document.write(" = ");
document.write(y.innerHTML);
}else{
document.write("<br>已经是最后一个节点");
}
</script>
</body>
</html>
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9-12 插入节点appendChild()
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<body>
<ul id="test">
<li>JavaScript</li>
<li>HTML</li>
</ul>
<script type="text/javascript">
var otest = document.getElementById("test");
var newli = document.createElement('li');
newli.innerHTML = 'PHP'
otest.appendChild(newli)
</script>
</body>
</html>
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