本文介绍了一个使用JavaScript定义构造函数并创建对象的简单示例。通过这个示例，读者可以了解到如何利用构造函数来初始化带有特定属性的对象。
<!DOCTYPE html>
<html>
<body>
<script>
function person(firstname,lastname,age,eyecolor)
{
this.firstname=firstname;
this.lastname=lastname;
this.age=age;
this.eyecolor=eyecolor;
}
myFather=new person("John","Doe",50,"blue");
document.write(myFather.firstname + " is " + myFather.age + " years old.");
</script>
</body>
</html>
<html>
<body>
<script>
function person(firstname,lastname,age,eyecolor)
{
this.firstname=firstname;
this.lastname=lastname;
this.age=age;
this.eyecolor=eyecolor;
}
myFather=new person("John","Doe",50,"blue");
document.write(myFather.firstname + " is " + myFather.age + " years old.");
</script>
</body>
</html>
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