javascript把RGB指定颜色转换成十六进制颜色

  function RGB2Color(r,g,b)
{
  return '#' + byte2Hex(r) + byte2Hex(g) + byte2Hex(b);
}

  function byte2Hex(n)
{
  var nybHexString = "0123456789ABCDEF";
  return String(nybHexString.substr((n >> 4) & 0x0F,1)) + nybHexString.substr(n & 0x0F,1);
}



原文:https://blog.csdn.net/monkindey/article/details/24845745 
 

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