display
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>#div1{ width:100px;
height:200px;
background:#ccc;
display:none;}
</style> <script>
function showHide()
{
var oDiv=document.getElementById('div1');
//div是显示的
if(oDiv.style.display=='block'){
oDiv.style.display='none';
}
else{
oDiv.style.display='block';
}
}
</script>
</head>
<body>
<input type="button" value="显示隐藏" onclick="showHide()">
<div id="div1"></div>
</body>
</html>
点击按钮之后
