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

代码示例：（标识：eg_js_arithmetric_exponent）

<!DOCTYPE html>
<html>
<body>

<h1>** 运算符</h1>

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

<script>
var x = 5;
document.getElementById("demo").innerHTML = x ** 2;
</script>

</body>
</html>