<html>
<head>
<script type = "text/javascript">
//替换字符串中的字符--replace()方法
var str = "Do you love me?";
document.write(str.replace (/me/who));
//查找字符串中指定的字符，若找到，返回该字符。---match()方法
var str = "hello kitty";
document.write(str.match("kitty") + "<br />");
document.write(str.match("kitty") + "<br />");
document.write(str.match("kitty1") + "<br />");
document.write(str.match("kitty!"));
//返回字符串中指定文本首次出现的位置---indexof()方法
var str = "hello world";
document.write(str.indexof("hello") + "<br>");
document.write(str.indexof("world") + "<br>");
document.write(str.indexof("world"));
//返回字符串长度
var txt = "welcome to my world!";
document.write(txt.length);
//为字符串添加样式
document.write("<p>Big:" + txt.big()+"</p>");
document.write("<p>Small:" + txt.Small() +"</p>");
document.write("<p>Bold:" + txt.bold() +"</p>");
document.write("<p>Italics:" + txt.italic() +"</p>");
document.write("<p>Blink:" + txt.blink() + "</p>");
document.write("<p>Fixed:" + txt.fixed() + "</p>");
document.write("<p>Strike:" + txt.strike() + "</p>");
dcument.write("<p>Fontcolor:" + txt.fontcolor("blue") + "</p>");
document.write("<p>Fontsiize:" + txt.fontsize(13) + "</p>");
document.write("<p>Uppercase:" + txt.uppercase() + "</p>");
document.write("<p>Lowercase:" + txt.lowercase() + "</p>");
document.write("<p>Suberscript:" + txt.sub() +"</p>");
doxument.write("<p>Superscript:" + txt.sup() + "</p>");
document.write("<p>Link:" + txt.link("http://www.baidu.com") + "</p>");
//创建用于对象的模版
function person(firstName,lastName,age,eyeColor){
this.firstName = firstName;
this.lastName = lastName;
this.age = age;
this.eyeColor = eyecolor;
}
mydear = new person("snoopy","peter",24,"black");
document.write(mydear.firsrName+ "的眼睛颜色是" + mydear.eyeColor);
//创建对象的实例
personObj = new Object();
personObj.firstName = "snoopy";
personObj.age = 35;
personObj.lastName = "abandon";
personObj.eyeColor = "blue";
document.write(personObj.firstName + "的年龄是" + personObj.age + "岁");
//使用计时事件制作的钟表
function startTime(){
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
m = checkTime(m);
s = checkTime(s);
document.getElementById("txt".innerHTML = h + ":" + m + ":" + s);
t = setTimeout("startTime()",500);
}
function checkTime(i){
if(i < 10){
i = "0" + i;
}
return i;
}
//带有停止按钮的无穷循环的计时事件
var c1 = 0;
var t1;
function timedCount(){
document.getElementById("txt").value = c1;
c1++;
t1 = setTimeout("timedCount()",1000);
}
function stopCount(){
c = 0;
setTimeout("document.getElementById("txt").value = 0",0);
clearTimeout(t);
}
//在一个无穷循环的计时事件
var c = 0;
var t;
function timedCount(){
document.getElementById("txt").value = c;
c++;
t = setTimeout("timedCount()",1000);
}
//另一个简单的计时
function timedText1(){
var t1 = setTimeout("document.getElementById ("txt").value = "two seconds"",2000);
var t2 = setTimeout("document.getElementById("txt").value = "four seconds"" ,4000);
var t3 = setTimeout("document.getElementById("txt").value = "six seconds"",6000);
}
//简单的计时
function timedMsg(){
var t = setTimeout(alert("5 secons!"),5000);
}
//添加了javascript的图像映射
function writeText(txt){
document.getElementById("desc").innerHTML = txt;
}
//按钮动画
function mouseOver(){
document.b1.src = "1.jpg"
}
function mouseOut.b1.src = "2.jpg";
</script>
</head>
<body onload = "startTime()">
//用计时事件制作的钟表
<div id = "txt"></div>
//带有停止按钮的无穷循环中的计时事件。
<form>
<input type = "button" value = "begain counts!" onclick = "timedCount()">
<input type = "button" value = "stop counting" onclick = "stopCount()">
<input type = "text" id = "txt">
</form>
<p>请点击上面的计时按钮，输入框会从0开始一直计数。点击停止按钮，计数将会从0重新开始。</p>
//一个无穷循环的计时事件
<form>
<input type = "button" value = "begain counts!" onclick = "setTimeout()">
<input type = "text" id = "txt">
</form>
<p>请点击上面的按钮，输入框会从0开始计算并且停止。</p>
//另一个简单的计时
<form>
<input type = "button" value = "show the time" onclick = "timedText()">
<input type = "txt" id = "txt">
</form>
<p>点击上面的按钮，输入框会显示逝去的时间。（2秒，4秒，6秒）</p>
//简单的计时
<form>
<input type = "button" value = "显示定时的警示框" onclick = "timedMsg()">
</form>
<p>请点击按钮，警示框会在5秒后显示。</p>
//添加了javascript的图像映射
<img src = "1.jpg" border = "0" alt = "planets" usemap = "planetmap">
<map name = "planetmap" id = "planetmap">
<area shape = "circle" coords = "180,139,14" onMouseOver =writeText("直到 20 世纪 60 年代，金星一直被认为是地球的孪生姐妹，因为金星是离我们最近的行星，同时还由于两者拥有很多共同的特征。 href = "/index.html" target ="_blank" alt = "Venus" ")>
<area shape = "circle" coords = "130,139,20" onMouseOver = writeText("从地球上是很难研究水星的，这是由于它和太阳的距离总是很近。") href = "/index.html"
target ="_blank" alt = "Mercury">
<area shape = "circle" coords = "140,130,49" onMouseOver = writeText("太阳和类似木星这样的气态行星是到目前为止太阳系中最大的物体。") href = "/index.html" target = "_blank" alt = "sun">
//按钮动画
<a href = "1/index.html" target = "_blank"></a>
<img boder ="0" alt = "Visit w3cschool" src = "2.jpg" onmouseover ="mouseOver() onmouseout ="mouseOut">
</body>
</html>