<!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> <title>无标题页</title> </head> <body> <div>我的闪烁文字 abc123</div> <span></span> <script type="text/javascript"> var begin = getRGB('#33FFAA'); var end = getRGB('#FF0000'); var curColor = getRGB('#33FFAA'); var bo = true; var rate = getRate(begin, end); function blink() { window.setInterval(function(){ curColor.r = getCur(begin.r, end.r, curColor.r, bo, rate.r); curColor.g = getCur(begin.g, end.g, curColor.g, bo, rate.g); curColor.b = getCur(begin.b, end.b, curColor.b, bo, rate.b); document.getElementById('div1').style.color = getColor(curColor); document.getElementById('span1').innerHTML = getColor(curColor); if(curColor.r == begin.r && curColor.g == begin.g && curColor.b == begin.b) { bo = true; } if(curColor.r == end.r && curColor.g == end.g && curColor.b == end.b) { bo = false; } } , 100); } function getCur(beginValue, endValue, curValue, bo, rateValue) { if(beginValue == endValue) { return beginValue; } rateValue = beginValue < endValue ? rateValue : -rateValue; curValue += bo ? rateValue : -rateValue; if(curValue < Math.min(beginValue, endValue)) { curValue = Math.min(beginValue, endValue); } if(curValue > Math.max(beginValue, endValue)) { curValue = Math.max(beginValue, endValue); } return curValue; } function getRate(b, e) { var obj = new Object(); obj.r = Math.abs(b.r - e.r) / 5; obj.g = Math.abs(b.g - e.g) / 5; obj.b = Math.abs(b.b - e.b) / 5; return obj; } function getRGB(color) { var obj = new Object(); obj.r = parseInt(color.substr(1,2), 16); obj.g = parseInt(color.substr(3,2), 16); obj.b = parseInt(color.substr(5,2), 16); return obj; } function getColor(obj) { obj.r = Math.round(obj.r); obj.g = Math.round(obj.g); obj.b = Math.round(obj.b); var color = '#'; color += (obj.r < 16 ? '0':'') + obj.r.toString(16); color += (obj.g < 16 ? '0':'') + obj.g.toString(16); color += (obj.b < 16 ? '0':'') + obj.b.toString(16); return color; } blink(); </script> </body> </html>
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