您所在位置：主题：javascript代码问题 求帮助
zhangda89
[专家分：0] 发布于 2011-03-27 13:34:00
这是我找的一个代码，关于颜色的现实问题 可是解决不了啊 好心的高手帮忙解决一下
<html>
<head>
<script>
<!--
function makearray(n)
{
this.length = n;
for(var i = 1; i <= n; i++)
this[i] = 0;
return this;
}
hexa = new makearray(16);
for(var i=0; i < 10; i++)
hexa[i] = i;
hexa[10] = "a";
hexa[11] = "b";
hexa[12] = "c";
hexa[13] = "d";
hexa[14] = "e";
hexa[15] = "f";
function hex(i)
{
if(i < 0)
return "00";
else if(i > 255)
return "ff";
else return " " + hexa[Math.floor(i/16)] + hexa[i%16];
}
function setbgColor(r, g, b)
{
var hr = hex(r);
var hg = hex(g);
var hb = hex(b);
document.bgColor = "#" + hr + hg + hb;
}
function fade(sr, sg, sb, er, eg, eb, step)
{
for(var i=0; i <= step; i++)
{
setbgColor(Math.floor(sr * ((step-i)/step) + er * (i/step)),
Math.floor(sg * ((step-i)/step) + eg * (i/step)),
Math.floor(sb * ((step-i)/step) + eb * (i/step)));
}
}
function fadein()
{
fade(255, 0, 0, 0, 0, 255, 100);
fade(0, 0, 255, 0, 255, 0, 100);
fade(0, 255, 0, 0, 0, 0, 100);
}
//-->
</script>
</head>
<body>
fadein();
</body>
</html>
<html>
<head>
<script>
<!--
function makearray(n)
{
this.length = n;
for(var i = 1; i <= n; i++)
this[i] = 0;
return this;
}
hexa = new makearray(16);
for(var i=0; i < 10; i++)
hexa[i] = i;
hexa[10] = "a";
hexa[11] = "b";
hexa[12] = "c";
hexa[13] = "d";
hexa[14] = "e";
hexa[15] = "f";
function hex(i)
{
if(i < 0)
return "00";
else if(i > 255)
return "ff";
else return " " + hexa[Math.floor(i/16)] + hexa[i%16];
}
function setbgColor(r, g, b)
{
var hr = hex(r);
var hg = hex(g);
var hb = hex(b);
document.bgColor = "#" + hr + hg + hb;
}
function fade(sr, sg, sb, er, eg, eb, step)
{
for(var i=0; i <= step; i++)
{
setbgColor(Math.floor(sr * ((step-i)/step) + er * (i/step)),
Math.floor(sg * ((step-i)/step) + eg * (i/step)),
Math.floor(sb * ((step-i)/step) + eb * (i/step)));
}
}
function fadein()
{
fade(255, 0, 0, 0, 0, 255, 100);
fade(0, 0, 255, 0, 255, 0, 100);
fade(0, 255, 0, 0, 0, 0, 100);
}
//-->
</script>
</head>
<body>
fadein();
</body>
</html>