<html>
<head>
<script type="text/javascript">
function testDisplay()
{
var divD = document.getElementById("testD");
if(divD.style.display=="none")
{
divD.style.display = "block";
}
else
{
divD.style.display = "none";
}
}
function testVisibility()
{
var divV = document.getElementById("testV");
if(divV.style.visibility =="hidden")
{
divV.style.visibility ="visible";
}
else
{
divV.style.visibility = "hidden";
}
}
</script>
</head>
</body>
<div id="testD" style="border:#ddd 1px solid">
<div style="display:block;border:#ccc 2px solid">
<div style="visibility:visible;border:#aaa 2px solid">
Display
</div>
</div>
</div>
<div id="testV" style="border:#ddd 1px solid">
<div style="display:block;border:#ccc 2px solid">
<div style="visibility:visible;border:#aaa 2px solid">
Visibility
</div>
</div>
</div>
<input type="button" value="TestDisplay" onclick="testDisplay()"/>
<input type="button" value="TestVisibility" onclick="testVisibility()"/>
</body>
</html>
演示图

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