代码示例:(标识:eg_js_object_create_new)
<!DOCTYPE html>
<html>
<body>

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

<script>
var person = new Object();
person.firstName = "Bill";
person.lastName = "Gates";
person.age = 50;
person.eyeColor = "blue"; 

document.getElementById("demo").innerHTML =
person.firstName + " is " + person.age + " years old.";
</script>

</body>
</html>
运行结果: