html运行实例（jsck_negative_infinity

代码示例：（标识：jsck_negative_infinity_1）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 数字</h1>

<h2>NEGATIVE_INFINITY 属性</h2>

<p>Number.NEGATIVE_INFINITY 返回负无穷大：</p>

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

<script>
document.getElementById("demo").innerHTML = Number.NEGATIVE_INFINITY;
</script>

</body>
</html>