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<!DOCTYPE html> <html> <body> <h2>JavaScript <i>this</i> 关键字</h2> <p>In this example, <b>this</b> represents the <b>person</b> object.</p> <p>Because the person object "owns" the fullName method.</p> <p id="demo"></p> <script> // 创建一个对象： var person = { firstName: "John", lastName : "Doe", id : 5566, fullName : function() { return this.firstName + " " + this.lastName; } }; // 显示来自对象的数据： document.getElementById("demo").innerHTML = person.fullName(); </script> </body> </html>