CSV文件转换为二维数组 [英] CSV file into two dimensional array

问题描述

新手C＃程序员在这里（3个月）



我的CSV文件如下所示：

0,1,2,3

4,5,6,7

8,9,10,11

12,13,14,15

16,17,18,19

20,21,22,23



如何将其编码为2D数组？



我的尝试：

Newbie C# programmer here (3 months)

My CSV file looks like this:
0,1,2,3
4,5,6,7
8,9,10,11
12,13,14,15
16,17,18,19
20,21,22,23

How do I code this into a 2D array?

What I have tried:

StreamReader stream = null;
  string line;
  string[] fields;

  // open the file for reading; assumes file exists
  stream = new StreamReader(new FileStream(path, FileMode.Open, FileAccess.Read));
  while (!stream.EndOfStream) // while there is still data in the file
  {
      line = stream.ReadLine(); // read next line with product data
      part = line.Split(','); // split into fields using comma as delimiter

      for (int i = 0; i < part.GetLength(0); i++)
      {
          list[i, 0] = part[i];
          for (int j = 0; j < list.GetLength(1); j++)
          {
              list[0, i] = part[i];
          }

      }

      lst.Items.Add(list);

推荐答案

我认为你在这里需要的是一个锯齿状的数组。锯齿状数组是一个数组数组。

I think that what you may need here is a jagged array. A jagged array is an array of arrays.

string fileName = @"C:\temp\myfile.txt";
string[] lines = File.ReadAllLines(fileName);
 int[][] jaggedArray = new int[lines.Length][];
 for (int i = 0; i < lines.Length; i++)
 {
     string[] strArray = lines[i].Split(',');
     int[] intArray = Array.ConvertAll(strArray, int.Parse);
     jaggedArray[i] = intArray;
 }
 string result = string.Join(", ", jaggedArray[0]);
 Console.WriteLine(result);//0,1,2,3

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