CSVReader

public class CsvController
{
    static CsvController csv;
    public List<string[]> arrayData;

    private CsvController()   //单例，构造方法为私有
    {
        arrayData = new List<string[]>();
    }

    public static CsvController GetInstance()   //单例方法获取对象
    {
        if (csv == null)
        {
            csv = new CsvController();
        }
        return csv;
    }

    public void loadFile(string path, string fileName)
    {
        arrayData.Clear();
        StreamReader sr = null;
        try
        {
            string file_url = path + "//" + fileName;    //根据路径打开文件
            sr = File.OpenText(file_url);
        }
        catch
        {
            return;
        }

        string line;
        while ((line = sr.ReadLine()) != null)   //按行读取
        {
            arrayData.Add(line.Split(','));   //每行逗号分隔,split()方法返回 string[]
        }
        sr.Close();
        sr.Dispose();
    }

    public string[] GetColData(int col)
    {
        string[] colArray = new string[arrayData.Count];
        for (int i = 0; i < arrayData.Count; i++)
        {
            colArray[i] = getString(i, col);
        }
        return colArray;
    }

    public string getString(int row, int col)
    {
        return arrayData[row][col];
    }
    public int getInt(int row, int col)
    {
        return int.Parse(arrayData[row][col]);
    }
}

使用  

  CsvController.GetInstance().loadFile("F:", "Test.csv");
  string[] ColData = CsvController.GetInstance().GetColData(0);