display显示隐藏

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>
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