输出8*8黑白棋盘:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>棋盘</title>
</head>
<body>
<script type="text/javascript">
document.writeln("<table width='200' height='200' border='1'>")
for (var i = 1; i <= 8; i++) {
document.writeln("<tr>");
for (var j = 1; j <= 8; j++) {
color = "black";
if ((i + j) % 2 == 0)
color = "white";
document.writeln("<td bgcolor='"+color+"'></td>")
}
document.writeln("</tr>");
}
document.writeln("</table>");
</script>
</body>
</html>