输入数字：
源码：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
<div>
输入数字：<input id="txtNum" type="text" onkeyup="showNum();" value="856" />
<div id="divNum" style="height:20px; position:relative; margin-top:5px;"></div>
<script type="text/javascript">
function showNum()
{
var txtNum = document.getElementById('txtNum');
var divNum = document.getElementById('divNum');
if(isNaN(txtNum.value))
{
return;
}
divNum.innerHTML = '';
var width = Math.floor(divNum.offsetHeight / 5);
for(var i=0; i<txtNum.value.length; i++)
{
var index = parseInt(txtNum.value[i]);
var strNum = arrNum[index];
for(var j=0; j<strNum.length; j++)
{
if(strNum[j] == '1')
{
var div = getDiv(width);
div.style.left = j % 3 * width + i * width * 4;
div.style.top = Math.floor(j / 3) * width;
divNum.appendChild(div);
}
}
}
}
var arrNum = [
'111101101101111',
'001001001001001',
'111001111100111',
'111001111001111',
'101101111001001',
'111100111001111',
'111100111101111',
'111001001001001',
'111101111101111',
'111101111001111'
];
function getDiv(width)
{
var div = document.createElement('div');
div.style.width = width;
div.style.height = width;
div.style.backgroundColor = 'red';
div.style.position = 'absolute';
return div;
}
showNum();
</script>
</div>
</form>
</body>
</html>