<!DOCTYPE html>
<html>
<head>
<title>JS计算器</title>
<meta name="keywords" content="keyword1,keyword2,keyword3">
<meta name="description" content="this is my page">
<meta name="content-type" content="text/html; charset=UTF-8">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
<style type="text/css">
input{
width: 60px;
}
</style>
<script type="text/javascript">
function start() {
var num1 = document.getElementById("num1").value;
var num2 = document.getElementById("num2").value;
var result = parseInt(num1)+parseInt(num2);
document.getElementById("result").value=result;
}
</script>
</head>
<body>
<input type="text" id="num1" name="num1">
+
<input type="text" id="num2" name="num2">
=
<input type="text" id="result" name="result">
<input type="button" value="运算" οnclick="start()">
</body>
</html>calculator.html
