html运行实例（eg_js_number_infinity）-搜寻教程库

代码示例：（标识：eg_js_number_infinity）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 数字</h1>

<p>Infinity （或 -Infinity）是 JavaScript 在计算数时超出最大可能数范围时返回的值：</p>

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

<script>
var myNumber = 2; 
var txt = "";
while (myNumber != Infinity) {
   myNumber = myNumber * myNumber;
   txt = txt + myNumber + "<br>";
}
document.getElementById("demo").innerHTML = txt;
</script>

</body>
</html>