代码如下：
复制代码 代码如下:
<%@ page language="java" contentType="text/html; charset=gbk"
pageEncoding="gbk"%>
<%@ include file="/pages/common/taglibs.jsp"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript" src="jquery-1.4.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("input[id^='buttonValidate']").click(function(){ //当点击所有的id中包含'buttonValidate'的input标签时，执行函数
var btnVal=$.trim($(this).val());//trim函数，去掉空格
var str = $('#textareaValidate').val() + btnVal;//
$('#textareaValidate').val(str);//
});
});
</script>
<title>Insert title here</title>
</head>
<body>
<form action="" method="post">
<table id ="table1" cellspacing="0" >
<tr>
<td >
<textarea cols="75" rows="5"></textarea>
</td>
</tr>
<tr>
<td>
<input type="button" value=" + "/>
<input type="button" value=" - "/>
<input type="button" value=" * "/>
<input type="button" value=" / "/>
<input type="button" value=" ! "/>
<input type="button" value=" = "/>
<input type="button" value=" < "/>
<input type="button" value=" > "/>
<input type="button" value=" & "/>
<input type="button" value=" | "/>
<input type="button" value=" ( "/>
<input type="button" value=" ) "/>
</td>
</tr>
</table>
</form>
</body>
</html>
如图：
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