刚刚发现了这个库:https://github.com/JoshClose/CsvHelper

非常直观，易于使用。有一个nuget包也使快速实现:https://www.nuget.org/packages/CsvHelper/27.2.1。我很喜欢这种积极的保养。

将其配置为使用分号很容易:https://github.com/JoshClose/CsvHelper/wiki/Custom-Configurations

大家好，我为此创建了一个静态类。 +列检查 +配额符号移除

public static class CSV
{
    public static List<string[]> Import(string file, char csvDelimiter, bool ignoreHeadline, bool removeQuoteSign)
    {
        return ReadCSVFile(file, csvDelimiter, ignoreHeadline, removeQuoteSign);
    }

    private static List<string[]> ReadCSVFile(string filename, char csvDelimiter, bool ignoreHeadline, bool removeQuoteSign)
    {
        string[] result = new string[0];
        List<string[]> lst = new List<string[]>();

        string line;
        int currentLineNumner = 0;
        int columnCount = 0;

        // Read the file and display it line by line.  
        using (System.IO.StreamReader file = new System.IO.StreamReader(filename))
        {
            while ((line = file.ReadLine()) != null)
            {
                currentLineNumner++;
                string[] strAr = line.Split(csvDelimiter);
                // save column count of dirst line
                if (currentLineNumner == 1)
                {
                    columnCount = strAr.Count();
                }
                else
                {
                    //Check column count of every other lines
                    if (strAr.Count() != columnCount)
                    {
                        throw new Exception(string.Format("CSV Import Exception: Wrong column count in line {0}", currentLineNumner));
                    }
                }

                if (removeQuoteSign) strAr = RemoveQouteSign(strAr);

                if (ignoreHeadline)
                {
                    if(currentLineNumner !=1) lst.Add(strAr);
                }
                else
                {
                    lst.Add(strAr);
                }
            }

        }

        return lst;
    }
    private static string[] RemoveQouteSign(string[] ar)
    {
        for (int i = 0;i< ar.Count() ; i++)
        {
            if (ar[i].StartsWith("\"") || ar[i].StartsWith("'")) ar[i] = ar[i].Substring(1);
            if (ar[i].EndsWith("\"") || ar[i].EndsWith("'")) ar[i] = ar[i].Substring(0,ar[i].Length-1);

        }
        return ar;
    }

}

如果你需要跳过(头部)行和/或列，你可以使用它来创建一个2维数组:

    var lines = File.ReadAllLines(path).Select(a => a.Split(';'));
    var csv = (from line in lines               
               select (from col in line
               select col).Skip(1).ToArray() // skip the first column
              ).Skip(2).ToArray(); // skip 2 headlines

如果您需要在进一步处理数据之前对其进行塑形，这是非常有用的(假设前两行由标题组成，而第一列是行标题—您不需要在数组中拥有行标题，因为您只想考虑数据)。

注意:您可以通过使用以下代码轻松获得标题和第一列:

    var coltitle = (from line in lines 
                    select line.Skip(1).ToArray() // skip 1st column
                   ).Skip(1).Take(1).FirstOrDefault().ToArray(); // take the 2nd row
    var rowtitle = (from line in lines select line[0] // take 1st column
                   ).Skip(2).ToArray(); // skip 2 headlines

这个代码示例假设你的*.csv文件的结构如下:

注意:如果你需要跳过空行——有时这很方便，你可以通过插入来实现

    where line.Any(a=>!string.IsNullOrWhiteSpace(a))

在上面的LINQ代码示例中的from和select语句之间。

刚刚发现了这个库:https://github.com/JoshClose/CsvHelper

非常直观，易于使用。有一个nuget包也使快速实现:https://www.nuget.org/packages/CsvHelper/27.2.1。我很喜欢这种积极的保养。

将其配置为使用分号很容易:https://github.com/JoshClose/CsvHelper/wiki/Custom-Configurations

以下是我对投票最多的答案的修改:

var contents = File.ReadAllText(filename).Split('\n');
var csv = from line in contents
          select line.Split(',').ToArray();

csv变量可以像下面的例子那样使用:

int headerRows = 5;
foreach (var row in csv.Skip(headerRows)
    .TakeWhile(r => r.Length > 1 && r.Last().Trim().Length > 0))
{
    String zerothColumnValue = row[0]; // leftmost column
    var firstColumnValue = row[1];
}

仍然是错误的。你需要对引号中的""进行补偿。 这是我的解决方案微软风格csv。

               /// <summary>
    /// Microsoft style csv file.  " is the quote character, "" is an escaped quote.
    /// </summary>
    /// <param name="fileName"></param>
    /// <param name="sepChar"></param>
    /// <param name="quoteChar"></param>
    /// <param name="escChar"></param>
    /// <returns></returns>
    public static List<string[]> ReadCSVFileMSStyle(string fileName, char sepChar = ',', char quoteChar = '"')
    {
        List<string[]> ret = new List<string[]>();

        string[] csvRows = System.IO.File.ReadAllLines(fileName);

        foreach (string csvRow in csvRows)
        {
            bool inQuotes = false;
            List<string> fields = new List<string>();
            string field = "";
            for (int i = 0; i < csvRow.Length; i++)
            {
                if (inQuotes)
                {
                    // Is it a "" inside quoted area? (escaped litteral quote)
                    if(i < csvRow.Length - 1 && csvRow[i] == quoteChar && csvRow[i+1] == quoteChar)
                    {
                        i++;
                        field += quoteChar;
                    }
                    else if(csvRow[i] == quoteChar)
                    {
                        inQuotes = false;
                    }
                    else
                    {
                        field += csvRow[i];
                    }
                }
                else // Not in quoted region
                {
                     if (csvRow[i] == quoteChar)
                    {
                        inQuotes = true;
                    }
                    if (csvRow[i] == sepChar)
                    {
                        fields.Add(field);
                        field = "";
                    }
                    else 
                    {
                        field += csvRow[i];
                    }
                }
            }
            if (!string.IsNullOrEmpty(field))
            {
                fields.Add(field);
                field = "";
            }
            ret.Add(fields.ToArray());
        }

        return ret;
    }
}