<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript">
//效果:.简单的加法计算.
//加载事件
window.onload = function () {
//给Button1注册单击事件
document.getElementById('Button1').onclick = function () {
var number1 = document.getElementById('txtNumber1').value;
var number2 = document.getElementById('txtNumber2').value;
document.getElementById('txtResult').value = parseInt(number1) + parseInt(number2);
};
};
</script>
</head>
<body>
<input type="text" name="name" value=" " id="txtNumber1"/>+
<input type="text" name="name" value=" " id="txtNumber2"/>
<input type="button" name="name" value="=" id="Button1"/>
<input type="text" name="name" value=" " id="txtResult"/>
</body>
</html>