C＃类问题 [英] C# Class Question

问题描述

自从我编写c＃代码以来已经有一段时间了，所以我有点生疏了。我需要一个关于如何编写和使用课程的快速进修课程。我正在使用的代码工作得很好，但它只是在一个文件中，Program.cs和为了使这个东西符合OOP
我想把它的部分移动到他们自己的类。我需要处理的第一个任务是设置一个字符串数组的值，该数组将包含文件夹中所有* .pdf文件的列表。

It's been a while since I've written c# code so I'm a bit rusty. I need a quick refresher course on how to write and use a class. The code I'm using works great but it's all in a single file, Program.cs and in order to make this thing compliant with OOP I want to move the parts of it to their own class. The first task I need to handle is to set the value for a string array which will hold a list of all the *.pdf files in a folder.

string[] filelist = new GetFiles();

这是我现在的课程......

Here is the class as I have it now...

public class GetFiles
    {                
        public GetFiles()
        {            
            DirectoryInfo dirInfo = new DirectoryInfo(@"C:\MyFolder\");
            FileInfo[] fileInfos = dirInfo.GetFiles("*.pdf");
            ArrayList list = new ArrayList();
            foreach (FileInfo info in fileInfos)
            {
                // HACK: Just skip the protected samples file...
                if (info.Name.IndexOf("protected") == -1)
                    list.Add(info.FullName);
            }

}

我想做的是让班级使用我可以运行的对象通过代码的其他部分，但是我上次用C＃编写代码已经很久了。任何建议都将不胜感激。

What I'd like to do is to have the class use an object which I can run through other parts of the code, but it's been so long since I last wrote code in C#. Any advice would be appreciated.

推荐答案

public GetFiles（）是构造函数。你应该为此实现一个方法：

public GetFiles() is the constructor. You should implement a method for this:

public class GetFiles
    {                
        public ArrayList Get(string path)
        {            
            DirectoryInfo dirInfo = new DirectoryInfo(path);
            FileInfo[] fileInfos = dirInfo.GetFiles("*.pdf");
            ArrayList list = new ArrayList();
            foreach (FileInfo info in fileInfos)
            {
                // HACK: Just skip the protected samples file...
                if (info.Name.IndexOf("protected") == -1)
                    list.Add(info.FullName);
            }
            return list;

}
}

并像这样使用它：

var getFiles = new GetFiles();
var filelist = getFiles.Get(@"c:\MyFolder\");

问候，克里斯

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