function RGB2Hex(rgb){
var re = rgb.replace(/(?:\(|\)|rgb|RGB)*/g,"").split(",");//利用正则表达式去掉多余的部分
var hexColor = "#";
var hex = [‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘, ‘8‘, ‘9‘, ‘A‘, ‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘];
for (var i = 0; i < 3; i++) {
var r = null;
var c = re[i];
var hexAr = [];
while (c > 16) {
r = c % 16;
c = (c / 16) >> 0;
hexAr.push(hex[r]);
}
hexAr.push(hex[c]);
hexColor += hexAr.reverse().join(‘‘);
}
return hexColor;
}
时间: 2024-10-28 23:22:14