Visual C#无法将CSV文件加载到二维数组中

using System;
using System.IO;

class Program
{
    static void Main(string[] args)
    {
        // 打开CSV文件
        using (StreamReader reader = new StreamReader("data.csv"))
        {
            // 获取CSV文件的行数和字段数
            int rowCount = File.ReadAllLines("data.csv").Length;
            int colCount = reader.ReadLine().Split(',').Length;

            // 创建二维数组
            string[,] csvData = new string[rowCount, colCount];

            // 逐行解析CSV文件并存入二维数组
            string line;
            int row = 0;
            while ((line = reader.ReadLine()) != null)
            {
                string[] fields = line.Split(',');
                for (int col = 0; col < colCount; col++)
                {
                    csvData[row, col] = fields[col];
                }
                row++;
            }

            // 输出二维数组中的数据
            for (int i = 0; i < rowCount; i++)
            {
                for (int j = 0; j < colCount; j++)
                {
                    Console.Write(csvData[i, j] + " ");
                }
                Console.WriteLine();
            }
        }
    }
}