tryjs_datatypes_object 在线代码实例

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运行代码

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<!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title>W3Cschool教程(w3cschool.cn)</title> 
</head>
<body>
<script>
var person=
{
    firstname : "John",
    lastname  : "Doe",
    id        :  5566
};
document.write(person.lastname + "<br>");
document.write(person["lastname"] + "<br>");
</script>
</body>
</html>
 
 
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运行结果
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