512色色谱图

<HTML><HEAD>
<TITLE>色谱图</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=gb2312">
</HEAD>
<BODY BGCOLOR="#FFFFFF">
<CENTER>
<h2>512色色谱图</h2>
<SCRIPT LANGUAGE="JavaScript">
//定义数组对象
clr=new Array('00','20','40','60','80','a0','c0','ff');
//创建8个8行8列的表格
for (i=0;i<8;i++) {//创建表格，单元格内填充距8像素
document.write("<table border=1 cellpadding=8>");
for (j=0;j<8;j++) {document.write("<tr>");
for (k=0;k<8;k++) {
//设置表格单元的背景颜色
document.write('<td bgcolor="#'+clr[i]+clr[j]+clr[k]+'">');
//设置文字颜色
document.write('<tt><font color="#'+clr[7-i]+clr[7-j]+clr[7-k]+'"> ');
//显示16进制颜色值
document.write('#'+clr[i]+clr[j]+clr[k]+' </font></tt></td>'); }
document.write("</tr>"); }document.write("</table><br>"); }
</SCRIPT>
</CENTER>
</BODY>
</HTML>