基本的matlab类方法 [英] Basic matlab class method

问题描述

可能重复：

如何修改Matlab对象的属性

我试图将我的C＃代码转换成Matlab，在Matlab中我决定使用OOP，我没有使用Matlab，能够处理我的C＃代码的复杂性。

I'm trying to convert my C# code into Matlab, in Matlab I decided to use OOP, which I haven't been used with Matlab, to be able to handle with the complexity of my C# code.

查看教程，我想出了以下代码：

Looking the tutorial, I come up with the following code:

classdef Cat
    properties
        meowCount = 0; 
    end
    methods 
        function Meow(C)
            disp('meowww'); 
            C.meowCount = C.meowCount + 1;
        end
    end    
end

结果：

>> c = Cat();
>> c.Meow();
meowww
>> c

c = 

  Cat

  Properties:
     meowCount: 0

  Methods

因此， meowCount 不会更改。问题是什么？

So, meowCount does not change. What is the problem?

推荐答案

我注意到一些问题：

• 您没有构造函数


• 您不是从句柄派生基类

• you have no constructor
• you do not derive from the handle base class

构造函数不是绝对必要的，但是当你真正想开始开发更大的类时，非常有用。它用于初始化 obj 对象，它会传递给每个方法。它非常类似于Python的 self ，或C ++的 this 。

The constructor is not strictly necessary, but very useful to get to know for when you really want to start developing larger classes. It is used to initialize the obj object, which gets passed around to each and every method. It is quite similar to Python's self, or C++'s this.

因此，您修正的类：

classdef Cat < handle

    properties
        meowCount = 0; 
    end

    methods 

        function obj = Cat()
            % all initializations, calls to base class, etc. here,
        end

        function Meow(obj)
            disp('meowww'); 
            obj.meowCount = obj.meowCount + 1;
        end
    end    
end

演示：

>> C = Cat;
>> C.Meow; 
meowww
>> C.meowCount
1

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