2个回答
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<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<script type="text/javascript" language="javascript">
function addOne()
{
var showControl = document.getElementById("txtNumber");
showControl.value = parseInt(showControl.value) + 1;
}
function removeOne()
{
var showControl = document.getElementById("txtNumber");
showControl.value = parseInt(showControl.value) - 1;
}
</script>
</head>
<body>
<div style="width:40px;height:40px;">
<table style=" background-color:#ebead8;">
<tr><td rowspan="2" style="width:70%">
<input type="text" value="0" id="txtNumber" style="height:40px;width:40px; text-align:center; vertical-align:middle; color:#7d2974; font-size:xx-large" /></td><td><input type="button" value="▲" id="up" onclick="addOne()" /></td></tr>
<tr><td><input id="down" type="button" onclick="removeOne()" value="▼" /></td></tr>
</table>
</div>
</body>
</html>
<head runat="server">
<title>无标题页</title>
<script type="text/javascript" language="javascript">
function addOne()
{
var showControl = document.getElementById("txtNumber");
showControl.value = parseInt(showControl.value) + 1;
}
function removeOne()
{
var showControl = document.getElementById("txtNumber");
showControl.value = parseInt(showControl.value) - 1;
}
</script>
</head>
<body>
<div style="width:40px;height:40px;">
<table style=" background-color:#ebead8;">
<tr><td rowspan="2" style="width:70%">
<input type="text" value="0" id="txtNumber" style="height:40px;width:40px; text-align:center; vertical-align:middle; color:#7d2974; font-size:xx-large" /></td><td><input type="button" value="▲" id="up" onclick="addOne()" /></td></tr>
<tr><td><input id="down" type="button" onclick="removeOne()" value="▼" /></td></tr>
</table>
</div>
</body>
</html>
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展开全部
css配合javascript
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