一、在Javascript中我们可以直接这样定义对象：
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var xiaoxing =
{
grade:1,
name : "xiaoxing",
age:27,
sex:"男",
speak:function(words)
{
alert(this.name+"说："+words+"!");
},
improve:function()
{
this.grade++;
}
}
这样，我就变成了一个对象了，你可以让我跟你说一句话
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xiaoxing.speak("欢迎来到cnblogs的supersun的天空");
while(i have friends)
{
xiaoxing.improve();
}
二
还不够面向对象，最好的做法是用一个函数来定义对象，在用他的prototype原型对象的方式来定义其属性，事件等，方便继承扩展。
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<script language="javascript" type="text/javascript">
//创建原型对象，定义属性、方法、及对象事件等。
Student.prototype=
{
_name:null,
_age:null,
_sex:null,
ShowName:function()
{
alert("Name:"+ this._name +"\n" + "Age:" + this._age + "\n" + "Sex:"+ this._sex);
}
}
//专门用一个函数来初始化对象。
function Student(name,age,sex)
{
this._name=name;
this._age=age;
this._sex=sex;
}
var student=new Student("Young",25,"男"); //实例化
student.ShowName(); //调用对象方法
</script>
<script language="javascript" type="text/javascript"> //创建原型对象，定义属性、方法、及对象事件等。 Student.prototype= { _name:null, _age:null, _sex:null, ShowName:function() { alert("Name:"+ this._name +"\n" + "Age:" + this._age + "\n" + "Sex:"+ this._sex); } } //专门用一个函数来初始化对象。 function Student(name,age,sex) { this._name=name; this._age=age; this._sex=sex; } var student=new Student("Young",25,"男"); //实例化 student.ShowName(); //调用对象方法 </script>
三
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<script language="javascript" type="text/javascript">
function Student(name,age,sex)
{
this._name=name;
this._age=age;
this._sex=sex;
this.ShowName=function()
{
alert("Name:"+ this._name +"\n" + "Age:" + this._age + "\n" + "Sex:"+ this._sex);
};
}
var student=new Student("Young",25,"男"); //实例化
student.ShowName(); //调用对象方法
</script>
</BODY>
</HTML>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <TITLE> New Document </TITLE> <META NAME="Generator" CONTENT="EditPlus"> <META NAME="Author" CONTENT=""> <META NAME="Keywords" CONTENT=""> <META NAME="Description" CONTENT=""> </HEAD> <BODY> <script language="javascript" type="text/javascript"> function Student(name,age,sex) { this._name=name; this._age=age; this._sex=sex; this.ShowName=function() { alert("Name:"+ this._name +"\n" + "Age:" + this._age + "\n" + "Sex:"+ this._sex); }; } var student=new Student("Young",25,"男"); //实例化 student.ShowName(); //调用对象方法 </script> </BODY> </HTML>
四
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<script type="text/javascript">
var person = new Function();//或var person = function(){}都可以
person.prototype={
grade:0,
age:0,
sex:null,
name:null,
speak:function(words)
{
alert(this.name+"说："+words+"!");
},
init:function(_grade,_age,_sex,_name)
{
this.grade = _grade;this.age=_age;this.sex=_sex;this.name=_name;
}
}
var xiaoxing = new person();
xiaoxing.init("10","27","男","xiaoxing");
xiaoxing.speak("hello everybody");
</script>
<script type="text/javascript"> var person = new Function();//或var person = function(){}都可以 person.prototype={ grade:0, age:0, sex:null, name:null, speak:function(words) { alert(this.name+"说："+words+"!"); }, init:function(_grade,_age,_sex,_name) { this.grade = _grade;this.age=_age;this.sex=_sex;this.name=_name; } } var xiaoxing = new person(); xiaoxing.init("10","27","男","xiaoxing"); xiaoxing.speak("hello everybody"); </script>
这里采用init来初始化定义了一个对象，当然我们还可以在function(){}这样写
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var person = function(_grade,_age,_sex,_name){this.grade = _grade;this.age=_age;this.sex=_sex;this.name=_name;}
这样我们就可以写成如下代码
希望更多的朋友发表自己的意见和心得
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var xiaoxing = new person("10","27","男","xiaoxing");
xiaoxing.speak("hello everybody");