发布于 2017-03-31 22:25:37 | 165 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程,程序狗速度看过来!
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如Perl,遗留的速度问题,为客户提供更流畅的浏览效果。
本文实例讲述了JS模仿腾讯图片站的图片翻页按钮效果。分享给大家供大家参考,具体如下:
运行效果截图如下:
具体代码如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>模仿腾讯图片翻页</title>
<style type="text/css">
*{
margin:none;
padding:none;
}
body{
background:#000000;
}
#tip{
position:absolute;
width:564px;
height:362px;
top:-362px;
background:url(../img/TencentImg/tipLayer.png);
}
#left{
position:absolute;
width:101px;
height:95px;
background:url(../img/TencentImg/left.png);
border:1px solid #f2f2f2;
display:none;
cursor:hand;
}
#right{
position:absolute;
width:101px;
height:95px;
background:url(../img/TencentImg/right.png);
border:1px solid #f2f2f2;
display:none;
cursor:hand;
}
#mouseXPosition{
width:30px;
height:20px;
color:#ffffff;
display:inline;
}
#mouseYPosition{
width:30px;
height:20px;
color:#ffffff;
display:inline;
}
#divTop{
width:30px;
height:20px;
color:#ffffff;
display:inline;
}
</style>
<script type="text/javascript">
function init(){
var ml = document.body.clientWidth/2 - 40;
document.getElementById("left").style.pixelTop = 300;
document.getElementById("right").style.pixelTop = 300;
document.getElementById("left").style.pixelLeft = ml - 101*4;
document.getElementById("right").style.pixelLeft = ml + 101*4;
var tip = document.getElementById("tip");
var initH = (document.body.clientWidth - tip.offsetWidth)/2;
document.getElementById("tip").style.left = initH;
document.getElementById("tip").style.pixelTop = -362;
}
function mousePosition(ev){
if(ev.pageX || ev.pageY){
return {x:ev.pageX, y:ev.pageY};
}
return {
x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
y:ev.clientY + document.body.scrollTop - document.body.clientTop
};
}
document.onmousemove = mouseMove;
function mouseMove(e){
e = e || window.event;
var mousePos = mousePosition(e);
var mid = document.body.clientWidth/2;
document.getElementById('mouseXPosition').innerHTML = mousePos.x;
document.getElementById('mouseYPosition').innerHTML = mousePos.y;
if(mousePos.x < mid){
document.getElementById("left").style.display = "block";
document.getElementById("right").style.display = "none";
}else if(mousePos.x > mid){
document.getElementById("right").style.display = "block";
document.getElementById("left").style.display = "none";
}
}
function show(){
if(document.getElementById("tip").style.pixelTop < 80){
document.getElementById("tip").style.pixelTop += 20;
document.getElementById("divTop").innerHTML = document.getElementById("tip").style.pixelTop;
setTimeout("show()",10)
}
}
function hide(){
if(document.getElementById("tip").style.pixelTop > -362){
document.getElementById("tip").style.pixelTop -= 20;
document.getElementById("divTop").innerHTML = document.getElementById("tip").style.pixelTop;
setTimeout("hide()",10)
}
}
</script>
</head>
<body onload="init()">
<div id = "left" onclick="hide()"></div>
<div id = "right" onclick="show()"></div>
<span style = "color:#ffffff;">鼠标 X 轴:</span>
<div id="mouseXPosition">0</div><br/>
<span style = "color:#ffffff">鼠标 Y 轴:</span>
<div id="mouseYPosition">0</div><br/>
<span style = "color:#ffffff;font-size:13px;">图片上边距:</span>
<div id = "divTop">0</div>
<div id = "tip">0</div>
</body>
</html>
希望本文所述对大家JavaScript程序设计有所帮助。