经常有人问怎么在HTML上制作图片的无缝滚动,我自己在一些项目中也会经常用到的,今天花了些时间,上网搜索了一下,下了些源码回来看了一下,发现都是只能在IE下能够滚动的,而且都是光<html></html>这样子的,没有加上documentType标签,不符合“标准”。
于是自己套上了标准之后再改了一下,发现在firefox中还是滚动不起来,知道肯定是某些地方的js只适用于IE吧,也懒得慢慢找了,直接用jquery来制作。
图片无缝向左滚动的代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS图片向左滚动</title>
<style type="text/css">
img{
border: none;
}
</style>
<!-- 这句话不能少,记得把jquery.js文件放在当前页面的同一目录中 -->
<script type="text/javascript" src="jquery.js"></script>
</head>
<body>
<div id="demo" style="overflow:hidden;500px;">
<table border=0 align=center cellpadding=1 cellspacing=1 cellspace=0 >
<tr>
<td id="demo1" valign="top" bgcolor="ffffff">
<!-- 特别注意,下面的图片总宽度必须大于上面定义的demo的宽度,如上面demo的宽度为500px,则下面图片总宽度必须大于500,否则会出现些问题! -->
<table border="0" cellspacing="0" cellpadding="0">
<tr align="center">
<td><a href="#" target="_blank"><img src="01.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="02.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="03.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="04.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="05.jpg" width="150" height="100"></a></td>
</tr>
</table>
</td>
<td id="demo2" valign="top"></td>
</tr>
</table>
</div>
<script type="text/javascript">
var speed=30;
var demo = $("#demo");
var demo1 = $("#demo1");
var demo2 = $("#demo2");
demo2.html(demo1.html());
function Marquee(){
if(demo.scrollLeft()>=demo1.width())
demo.scrollLeft(0);
else{
demo.scrollLeft(demo.scrollLeft()+1);
}
}
var MyMar=setInterval(Marquee,speed)
demo.mouseover(function() {
clearInterval(MyMar);
} )
demo.mouseout(function() {
MyMar=setInterval(Marquee,speed);
} )
function fun1(){
alert(demo.scrollLeft());
}
function fun2(){
alert(demo1.width());
}
</script>
<input type="button" value="显示demo.scrollLeft()" onclick="fun1();"/>
<input type="button" value="显示demo1.width())" onclick="fun2();"/>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS图片向左滚动</title>
<style type="text/css">
img{
border: none;
}
</style>
<!-- 这句话不能少,记得把jquery.js文件放在当前页面的同一目录中 -->
<script type="text/javascript" src="jquery.js"></script>
</head>
<body>
<div id="demo" style="overflow:hidden;500px;">
<table border=0 align=center cellpadding=1 cellspacing=1 cellspace=0 >
<tr>
<td id="demo1" valign="top" bgcolor="ffffff">
<!-- 特别注意,下面的图片总宽度必须大于上面定义的demo的宽度,如上面demo的宽度为500px,则下面图片总宽度必须大于500,否则会出现些问题! -->
<table border="0" cellspacing="0" cellpadding="0">
<tr align="center">
<td><a href="#" target="_blank"><img src="01.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="02.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="03.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="04.jpg" width="150" height="100"></a></td>
<td><a href="#" target="_blank"><img src="05.jpg" width="150" height="100"></a></td>
</tr>
</table>
</td>
<td id="demo2" valign="top"></td>
</tr>
</table>
</div>
<script type="text/javascript">
var speed=30;
var demo = $("#demo");
var demo1 = $("#demo1");
var demo2 = $("#demo2");
demo2.html(demo1.html());
function Marquee(){
if(demo.scrollLeft()>=demo1.width())
demo.scrollLeft(0);
else{
demo.scrollLeft(demo.scrollLeft()+1);
}
}
var MyMar=setInterval(Marquee,speed)
demo.mouseover(function() {
clearInterval(MyMar);
} )
demo.mouseout(function() {
MyMar=setInterval(Marquee,speed);
} )
function fun1(){
alert(demo.scrollLeft());
}
function fun2(){
alert(demo1.width());
}
</script>
<input type="button" value="显示demo.scrollLeft()" onclick="fun1();"/>
<input type="button" value="显示demo1.width())" onclick="fun2();"/>
</body>
</html>
那二个按钮主要是为了自己观察值的变化之用,正式使用中可以去掉。
向右无缝滚动的HTML同上,只是js脚本中的Marquee函数不同,代码如下:
function Marquee(){
if(demo.scrollLeft()==0){
demo.scrollLeft(demo1.width());
}else{
demo.scrollLeft(demo.scrollLeft()-1);
}
}
if(demo.scrollLeft()==0){
demo.scrollLeft(demo1.width());
}else{
demo.scrollLeft(demo.scrollLeft()-1);
}
}
向上无缝滚动的HTML代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS图片向上滚动</title>
<style type="text/css">
img{
border: none;
}
</style>
<!-- 这句话不能少,记得把jquery.js文件放在当前页面的同一目录中 -->
<script type="text/javascript" src="jquery.js"></script>
</head>
<body>
<div id="demo" style="overflow:hidden;height:300px;">
<table border=0 align=center cellpadding=1 cellspacing=1 cellspace=0 >
<tr id="demo1">
<td valign="top" bgcolor="ffffff">
<!-- 特别注意,下面的图片总高度必须大于上面定义的demo的宽度,如上面demo的高度为300px,则下面所有图片的高的和值必须大于300,否则会出现些问题! -->
<table border="0" cellspacing="0" cellpadding="0">
<tr align="center">
<td><a href="#" target="_blank"><img src="01.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="02.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="03.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="04.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="05.jpg" width="150" height="100"></a></td>
</tr>
</table>
</td>
</tr>
<tr id="demo2">
</tr>
</table>
</div>
<script type="text/javascript">
var speed=30;
var demo = $("#demo");
var demo1 = $("#demo1");
var demo2 = $("#demo2");
demo2.html(demo1.html());
function Marquee(){
if(demo.scrollTop()>=demo1.height())
demo.scrollTop(0);
else{
demo.scrollTop(demo.scrollTop()+1);
}
}
var MyMar=setInterval(Marquee,speed)
demo.mouseover(function() {
clearInterval(MyMar);
} )
demo.mouseout(function() {
MyMar=setInterval(Marquee,speed);
} )
function fun1(){
alert(demo.scrollTop());
}
function fun2(){
alert(demo1.height());
}
</script>
<input type="button" value="显示demo.scrollTop()" onclick="fun1();"/>
<input type="button" value="显示demo1.height())" onclick="fun2();"/>
</body>
</html>
向下无缝滚动的HTML代码同上,只是js脚本中的Marquee函数不同,如下:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS图片向上滚动</title>
<style type="text/css">
img{
border: none;
}
</style>
<!-- 这句话不能少,记得把jquery.js文件放在当前页面的同一目录中 -->
<script type="text/javascript" src="jquery.js"></script>
</head>
<body>
<div id="demo" style="overflow:hidden;height:300px;">
<table border=0 align=center cellpadding=1 cellspacing=1 cellspace=0 >
<tr id="demo1">
<td valign="top" bgcolor="ffffff">
<!-- 特别注意,下面的图片总高度必须大于上面定义的demo的宽度,如上面demo的高度为300px,则下面所有图片的高的和值必须大于300,否则会出现些问题! -->
<table border="0" cellspacing="0" cellpadding="0">
<tr align="center">
<td><a href="#" target="_blank"><img src="01.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="02.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="03.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="04.jpg" width="150" height="100"></a></td>
</tr>
<tr align="center">
<td><a href="#" target="_blank"><img src="05.jpg" width="150" height="100"></a></td>
</tr>
</table>
</td>
</tr>
<tr id="demo2">
</tr>
</table>
</div>
<script type="text/javascript">
var speed=30;
var demo = $("#demo");
var demo1 = $("#demo1");
var demo2 = $("#demo2");
demo2.html(demo1.html());
function Marquee(){
if(demo.scrollTop()>=demo1.height())
demo.scrollTop(0);
else{
demo.scrollTop(demo.scrollTop()+1);
}
}
var MyMar=setInterval(Marquee,speed)
demo.mouseover(function() {
clearInterval(MyMar);
} )
demo.mouseout(function() {
MyMar=setInterval(Marquee,speed);
} )
function fun1(){
alert(demo.scrollTop());
}
function fun2(){
alert(demo1.height());
}
</script>
<input type="button" value="显示demo.scrollTop()" onclick="fun1();"/>
<input type="button" value="显示demo1.height())" onclick="fun2();"/>
</body>
</html>
function Marquee(){
if(demo.scrollTop()==0)
demo.scrollTop(demo1.height());
else{
demo.scrollTop(demo.scrollTop()-1);
}
}
if(demo.scrollTop()==0)
demo.scrollTop(demo1.height());
else{
demo.scrollTop(demo.scrollTop()-1);
}
}