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<!DOCTYPE html> <html> <body> <h2>JavaScript 函数</h2> <p>此示例调用 person 的 fullName 方法，在 person2 上使用它：</p> <p id="demo"></p> <script> var person = { fullName: function() { return this.firstName + " " + this.lastName; } } var person1 = { firstName:"John", lastName: "Doe" } var person2 = { firstName:"Mary", lastName: "Doe" } x = person.fullName.call(person2); document.getElementById("demo").innerHTML = x; </script> </body> </html>