Dom 简单的计算二个数的和
parseInt("",几进制);将一个字符串转换为int类型
<head>
<script type="text/javascript">
function SubMitSum() {
var first = document.getElementById("text1").value;
var second = document.getElementById("text2").value;
first= parseInt(first,10);
second= parseInt(second,10);
var sum = first + second;
alert(sum);
}
</script>
</head>
<body>
<input type="text" id="text1"/>
<input type="button" value="+" />
<input type="text" id="text2"/>
<input id="btnReg" type="button" value="同意" onclick="SubMitSum()"/>
</body> |
|
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