html运行实例（js_number_inaccurate

代码示例：（标识：js_number_inaccurate_1）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 数字</h1>

<h2>整数精度</h2>

<p>整数（没有句点或指数符号的数字）最多精确到 15 位：</p>

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

<script>
let x = 999999999999999;
let y = 9999999999999999;
document.getElementById("demo").innerHTML = x + "<br>" + y;
</script>

</body>
</html>