同事提供的题目(Taobao)

alert(toRGB("#0000FF"));     //返回rgb(0,0,255)
alert(toRGB("#00F"));     //返回rgb(0,0,255)
alert(toRGB("#FF0000"));     //返回rgb(255,0,0)
alert(toRGB("taobao"));     //返回rgb(taobao)
alert(toRGB("#G00"));     //返回rgb(#G00)

function toRGB(color){

    //第有一字符有#号
    if(color.indexOf('#')==0){

        //判断长度
        if(color.length==4){
            //取出字母
            r = color.match(/([\da-z])/ig);
        }else{
            //取出字母
            r = color.match(/([\da-z]{2})/ig);
        }
        //返回
        return 'rgb('+formatHEX(r) +')';
    }else{
        return 'rgb('+color+')';
    }
}
//转化色彩数组转为10进制
function formatHEX(x){

    var html=[];
    for(i in x){
        html[i] = parseInt(x[i], 16);
        if(isNaN(html[i])){
            return '#'+x.join('');
        }
    }
    return html.join(',');
}

Tags: , ,

This entry was posted on 星期六, 十月 10th, 2009 at 16:10 and is filed under 默认分类. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

Comments are closed.