设置为block不显示

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
  div{
   display: none;
   width: 100px;
   height: 100px;
   background-color: red;
  }
</style>
<script>
  window.onload = function(){
   var oTxt = document.getElementsById('txt');
   var oBox = document.getElementById('box');
   oTxt.onmouseover = function(){
    oBox.style.display = 'block';
   }
  }
</script>
</head>
<body>
<a href="#" id="txt">删除对防守打法</a>
<div id="box"></div>

</body>
</html>

qq_我的酒窝没有酒_0

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1回答

产品经理不是经理

var oTxt = document.getElementsById('txt');//这句写错了方法是getElementById()；要细心啊，兄弟。

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