JavaScript进度条设计源码实例
\n
几种方案
1.如图:
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”>
<HTML>
<HEAD>
<TITLE> 进度条 </TITLE>
<META NAME=”Generator” CONTENT=”EditPlus”>
<META NAME=”Author” CONTENT=”">
<META NAME=”Keywords” CONTENT=”text/html”>
<META NAME=”Description” CONTENT=”有关windows中进度条的实现”>
<style type=”text/css”>
#out{width:300px;height:20px;background:#EEE;}
#in{width:10px; height:20px;background:#778899;color:white;text-align:center;}
#font_color{background:yellow;text-align:center;color:white;}
</style>
</HEAD>
<BODY onload=”start();” >
<div id=’out’>
<div id=”in” style=”width:10%”>10%</div>
<div>
<script type=”text/javascript”>
i=0;
function start()
{
ba=setInterval(“begin()”,100);//setInterval 返回的是一个全局变量，一个间隔数值.这个数值是表示调用setInterval的次数
}
function begin()
{
i+=1;
if(i<=100)
{
document.getElementById(“in”).style.width=i+”%”;
document.getElementById(“in”).innerHTML=i+”%”;}
else
{
clearInterval(ba);
document.getElementById(“out”).style.display=”none”;
document.write(“<span style=’background:yellow;text-align:center;color:white;’>加载成功</span>”);
}
}
</script>
</BODY>
</HTML>
\n
2.
\n
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”>
<HTML>
<HEAD>
<TITLE> 进度条 </TITLE>
<META NAME=”Generator” CONTENT=”EditPlus”>
<META NAME=”Author” CONTENT=”">
<META NAME=”Keywords” CONTENT=”text/html”>
<META NAME=”Description” CONTENT=”有关windows中进度条的实现”>
<style type=”text/css”>
#out{width:300px;height:20px;background:#ccc; position:relative}
#in{width:10px; height:20px;background:#03f;color:white;text-align:center;overflow:hidden;}
#in_0{text-align:center; width:300px; font-weight:bold; height:20px; line-height:20px; position:absolute; z-index:-1;}
#in_1{text-align:center; width:300px; font-weight:bold; height:20px; line-height:20px; color:#fff;}
#font_color{background:yellow;text-align:center;color:white;}
</style>
</HEAD>
<BODY onload=”start();” >
<div id=’out’>
<div id=”in_0″>已加载10%</div>
<div id=”in” style=”width:10%”><div id=”in_1″></div></div>
<div>
<script type=”text/javascript”>
i=0;
function start()
{
ba=setInterval(“begin()”,100);//setInterval 返回的是一个全局变量，一个间隔数值.这个数值是表示调用setInterval的次数
}
function begin()
{
i+=1;
if(i<=100)
{
document.getElementById(“in”).style.width=i+”%”;
document.getElementById(“in_0″).innerHTML= document.getElementById(“in_1″).innerHTML=”已加载”+i+”%”;}
else
{
clearInterval(ba);
document.getElementById(“out”).style.display=”none”;
document.write(“<span style=’background:yellow;text-align:center;color:white;’>加载成功</span>”);
}
}
</script>
</BODY>
</HTML>
\n
3.（FF下调试未通过，可能不兼容IE外浏览器）
<style>
#load{width:500px;height:25px;border:1px #000 solid;}
#loading{position:absolute;z-index:2;height:23;filter:progid:DXImageTransform.microsoft.gradient(gradienttype=1,startColorStr=white,endColorStr=#39867b);}
#loadtext{position:absolute;z-index:3;width:100%;height:100%;line-height:23px;text-align:center;}
</style>
<div id=”load”><div id=”loading”></div><div id=”loadtext”>1%</div></div>
<script>
var i=0;
function test(){
i++;
document.getElementById(“loading”).style.width = i + “%”;
document.getElementById(“loadtext”).innerText = i + “%”;
if(i<100)setTimeout(“test()”,200);
}
setTimeout(“test()”,200);
</script>