在C#中读取CSV时忽略列的最佳方式是什么？

所以我读了一个大的CSV文件，它可能看起来像

"Intelligent Mail barcode","Sack and Pa","Opt. Endorsement Line","Label ","NAME","COMPANY","DELADDR","CITY","ST","ZIP"
"xxxxxxxxxxxxxxxxxxxxxxxxx","T1  P1","******AUTO**MIXED AADC 403","xxxx","xxxxxxxx","xxxxxxxxxxxxxxxx","xxxxxxxx","xxxxx","xxxx","xxxxx"
"xxxxxxxxxxxxxxxxxxxxxxxxx","T1  P1","******AUTO**MIXED AADC 403","xxxx","xxxxxxxxxx","xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","xxxxxx","xxxxx","xx","xxxxx"

在这种情况下，我希望能够删除前4列。所以，智能邮件，Sack和Pa，选择。背书，标签1将被忽略，与之相关的数据也将被忽略或为空

因此，输出将是

"NAME","COMPANY","DELADDR","CITY","ST","ZIP"
"xxxxxxxx","xxxxxxxxxxxxxxxx","xxxxxxxx","xxxxx","xxxx","xxxxx"
"xxxxxxxxxx","xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","xxxxxx","xxxxx","xx","xxxxx"

我怎样才能做到这一点？寻找最简单的方法来做到这一点

以下是我目前如何阅读CSV：

        using (StreamReader reader = new StreamReader(fileSaveLocation))
        {
            string line;
            header = reader.ReadLine();

            while ((line = reader.ReadLine()) != null)
            {
                sb.Append(line);
                sb.Append(Environment.NewLine);
            }
        }

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我建议使用诸如LINQtoCSV之类的库来处理CSV文件和POCO类之间的序列化，而不是自己用

ReadLine

解析文件。这里有一个文档示例-您应该找到一个经过验证的CSV解析器，而不是自己编写。外面有很多，比如说谢谢，伙计们，我会尽快看一看这些。几乎是重复的：