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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>小鸟启蒙(facesoho.com)</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>
运行结果