如何创建自定义属性，如Length属性? [英] How to create custom property like Length property?

问题描述

class Program
{
    static void Main(string[] args)
    {

        string str = "Hello";


        for (int i = 0; i < str.Length; i++)
        {
            Console.WriteLine(str[i]);

        }
    }
}

在上面的程序中，我使用了Length属性，我不想使用字符串Length属性，我想创建类似Length的属性.逻辑是什么，如何实现?

In the above program, I have used Length property, I dont want to use string Length property, i want to create a similar property like Length. What is the logic and how can i achieve it?

推荐答案

属性是非常基本的东西，您可以在任何C#教程中进行阅读.在网络上或任何有关C#的入门书籍中.这是有关C#的(合法的)免费PDF书籍:使用C#编程简介 [

Properties are very basic stuff and you''ll be able to read up on that in any C#-tutorial on the web or in any introductory book on C#. Here''s a (legal) free PDF book on C#: Introduction to Programming with C#[^]

However, I''ll add that it''ll depend on whether you want to add a property to a class that you wrote yourself or to a class from the .Net Framework. The latter case is not possible because there are no true extension properties in C# yet. Only workarounds that achieve somewhat the same goal but don''t work the same way. You''ll find them by googling for "C# extension properties".

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