blocks|key|3724700|text|看看this+link吧。在Javascript中进行面向对象编程有不同的方法。细节太多了，无法在这里解释。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3724701|如果你对Javascript编程是认真的，你应该阅读this+book。|3724702|如果你想进行真正的OO编程，我建议你去看看Coffee+Script。|3724703|entityMap|0|LINK|mutability|MUTABLE|url|http://www.phpied.com/3-ways-to-define-a-javascript-class/|1|http://www.amazon.de/JavaScript-Parts-Working-Shallow-Grain/dp/0596517742/ref=sr_1_1?ie=UTF8&qid=1313959138&sr=8-1|2|http://jashkenas.github.com/coffee-script/^0|2|9|0|0|Q|9|1|0|L|D|2|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@$A|Y|B|Z|1|10]]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]]]

Have a look at <a href="http://www.phpied.com/3-ways-to-define-a-javascript-class/" rel="noreferrer">this link</a>. There a different ways to do OO programming in Javascript. The details are too much to be explained here.

If you are serious about Javascript programming, you should read <a href="http://www.amazon.de/JavaScript-Parts-Working-Shallow-Grain/dp/0596517742/ref=sr_1_1?ie=UTF8&amp;qid=1313959138&amp;sr=8-1" rel="noreferrer">this book</a>.

If you want to do real heavy OO programming, I would recommend to have a look at <a href="http://jashkenas.github.com/coffee-script/" rel="noreferrer">Coffee Script</a>.

blocks|key|287393|text|Classy是一个JavaScript库，它试图将类似Python的类引入JavaScript。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|287394|entityMap|0|LINK|mutability|MUTABLE|url|http://classy.pocoo.org/^0|0|6|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="http://classy.pocoo.org/" rel="nofollow">Classy</a> is a JavaScript library that tries to bring Python-like classes to JavaScript.

blocks|key|287403|text|在Javascript中创建类的本机方法是首先定义构造函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|287404|function+MyClass()+{
}|code-block|syntax|javascript|287405|和一个原型：|287406|MyClass.prototype+=+{
++++property:+1,
++++foo:+function(bar)+{
++++}
};|287407|然后，您可以创建MyClass的实例：|287408|var+object+=+new+MyClass;
object.foo();|287409|添加静态方法：|287410|MyClass.staticMethod+=+function()+{};

MyClass.staticMethod();|287411|扩展MyClass：|287412|function+SubClass()+{
}
SubClass.prototype+=+new+MyClass;
SubClass.prototype.bar+=+function()+{
};

var+object+=+new+SubClass;
object.foo();
object.bar();|287413|entityMap^0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|16|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|W|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|X|$]]

The native way to create classes in Javascript is to first define the constructor:

<pre><code>function MyClass() {
}
</code></pre>

and a prototype:

<pre><code>MyClass.prototype = {
 property: 1,
 foo: function(bar) {
 }
};
</code></pre>

Then you can create instance of MyClass:

<pre><code>var object = new MyClass;
object.foo();
</code></pre>

Add static methods:

<pre><code>MyClass.staticMethod = function() {};

MyClass.staticMethod();
</code></pre>

Extend MyClass:

<pre><code>function SubClass() {
}
SubClass.prototype = new MyClass;
SubClass.prototype.bar = function() {
};

var object = new SubClass;
object.foo();
object.bar();
</code></pre>

blocks|key|287434|text|Javascript并没有真正的类。它所拥有的是原型--一个对象的实例，用作新对象的模板。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|287435|创建对象的方法是使用文字构造函数。它很简洁，但缺点是它不能添加到它的结构中，也不能在它的构造中使用复杂的语句。|287436|另一种方式是这样的：|287437|function+SomeClass(value)+{
++++if+(value+<+0)+{
++++++++this.field+=+-1;
++++}+else+{
++++++++this.field+=+value;
++++}
}|code-block|syntax|javascript|287438|并创建一个新实例，如下所示：|287439|var+obj+=+new+SomeClass(15);|287440|这使您能够在构造对象时使用条件逻辑、for循环和其他更复杂的编程技术。但是，我们只能添加实例字段，而不能添加“class”字段。您可以通过修改对象创建器函数的prototype来添加类字段。|offset|length|style|CODE|287441|MyClass.prototype.fieldSquared+=+function+()+{
++++return+this.field+*+this.field;
}|287442|This对Javascript中的对象创建和原型提供了更完整的概述。|287443|entityMap|0|LINK|mutability|MUTABLE|url|http://www.phpied.com/3-ways-to-define-a-javascript-class/^0|0|0|0|0|0|0|27|9|0|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|19|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|1B|8|@]|9|@]|A|$I|J]]|$1|O|3|P|5|6|7|1C|8|@$Q|1D|R|1E|S|T]]|9|@]|A|$]]|$1|U|3|V|5|H|7|1F|8|@]|9|@]|A|$I|J]]|$1|W|3|X|5|6|7|1G|8|@]|9|@$Q|1H|R|1I|1|1J]]|A|$]]|$1|Y|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|Z|$10|$5|11|12|13|A|$14|15]]]]

Javascript doesn't really have classes. What it has is prototypes -- an instance of an object that is used as a template for new objects.

The way you've created your object is to use a literal constructor. It's succinct, but suffers that it cannot be added to or use complicated statements in its construction.

Another way is like so:

<pre><code>function SomeClass(value) {
 if (value &lt; 0) {
 this.field = -1;
 } else {
 this.field = value;
 }
}
</code></pre>

And a new instance is created like this:

<pre><code>var obj = new SomeClass(15);
</code></pre>

This enables you to use conditional logic, for loops and other more complicated programming techniques in construction of your object. However, we can only add instance fields and not 'class' fields. You add class fields my modifying the <code>prototype</code> of your object creator function.

<pre><code>MyClass.prototype.fieldSquared = function () {
 return this.field * this.field;
}
</code></pre>

<a href="http://www.phpied.com/3-ways-to-define-a-javascript-class/" rel="nofollow">This</a> gives a more complete overview of object creation and prototypes in Javascript.

I was wondering how one would go about making "classes" similar to those in Python in Javascript. Take the Python classes and functions listed here:

<pre><code>class one:
 def foo(bar):
 # some code
</code></pre>

The function "foo" would be called with <code>one.foo(bar)</code>. 
What would the JS equivalent be? I suspect it would be something like this:

<pre><code>var one = {
 foo: function(bar) {
 // JavaScript
 }
};
</code></pre>

Thanks.

Python-Like "Classes" in Javascript

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想知道如何在Javascript中创建类似于Python中的“类”。以下面列出的Python类和函数为例：class one:    def foo(bar):        # some code函数"foo“将使用one.foo(bar)调用。JS的等价物是什么？我猜想应该是这样的：var one = {    ...

问Javascript中类似Python的“类”
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