html运行实例（eg_js_datatypes_number）-搜寻教程库

代码示例：（标识：eg_js_datatypes_number）

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript 数值</h2>

<p>写数值时用不用小数点均可：</p>

<p id="demo"></p>

<script>
var x1 = 34.00;
var x2 = 34;
var x3 = 3.14;

document.getElementById("demo").innerHTML =
x1 + "<br>" + x2 + "<br>" + x3;
</script>

</body>
</html>