Question

急急急，编写一个JavaScript程序，用于在网页上输出空心正方形

Answer 1

<SCRIPT language="JavaScript">
<!-- Begin
//nLength为正方形的边长，nHollow为空心的边长
function printSquare(nLength, nHollow)
{
if (!nLength || !nHollow || nLength <= nHollow)
{
alert("参数不正确，请核对！");
return;
}
for (var n = 0; n <nLength; n++)
{
for(var i = 0; i < nLength; i++)
{
if (n < nHollow || n >= nLength - nHollow)
{
document.write(" * ");
}
if (n >= nHollow && n < nLength - nHollow)
{
if (i < nHollow || i >= nLength - nHollow)
{
document.write(" * ");
}
else
{
document.write("   ");
}
}
}
document.write("<br>");
}
}

window.onload = printSquare(12, 1);
// End -->
</SCRIPT>

Answer 2

<script type="text/javascript">
document.write("正方形：<br/><div style='display:block;height:100px;width:100px;border:10px solid #00f'></div>");
</script>

Answer 3

不是很明白说的啥意思