function zero_fill_hex(num, digits) { var s = num.toString(16); while (s.length < digits)s = "0" + s; return s;}function rgb2hex(rgb) { if (rgb.charAt(0) == "#")return rgb;var ds = rgb.split(/D+/); var decimal = Number(ds[1]) * 65536 + Number(ds[2]) * 256 + Number(ds[3]); return "#" + zero_fill_hex(decimal, 6);}以上所述就是本文的全部内容了,希望大家能够喜欢。