编辑下面的代码:【加编码】
<html> <body> <script> var person=new Object(); person.firstname="John"; person.lastname="Doe"; person.age=50; person.eyecolor="blue"; document.write(person.firstname + " is " + person.age + " years old."); </script> </body> </html>
结果: 【此窗口】 帮助?
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