从读取文本文件的每一行到双打的数组或整数使用C＃ [英] Reading each row from text file into an array of doubles or integer using C#

问题描述

假如我有数据的文本文件类似下面，我想读的第一行和内容存储在一个阵列。阅读第二行和存储在第二阵列等。我将在阵列上以后进行一些操作。你能不能帮我在C＃这样做吗？

Suppose I have a text file with data like below, I want to read first row and store the elements in one array. Read the second row and store in second array and so on. I will be making some manipulations on the array later on. Can you help me to do this in C#?

输入文本文件：

5,7,3,6,9,8,3,5,7

5,7,3,6,9,8,3,5,7

5,6,8,3,4,5

5,6,8,3,4,5

6,4,3,2,65,8,6,3,3,5,7,4

6,4,3,2,65,8,6,3,3,5,7,4

4,5,6,78,9,4,2,5,6

4,5,6,78,9,4,2,5,6

的code我想的是：的

The Code I am trying out is:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace ReadFile
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        static void Main(string[] args)
        {
            TextReader tr = new StreamReader("Data.txt");
            // write a line of text to the file
            string word = tr.ReadLine();
            //now split this line into words
            string[] val = word.Split(new Char[] { ',' });
        }
    }

}

如果我使用上述技术，我可以得到val数组的第一行。有没有一种方法，以循环为所有的行？的

If I use the above technique, I can get the first line in array val. Is there a way to loop it for all the rows?

推荐答案

我想通了。感谢所有为您的时间！

I figured it out. Thanks all for your time!

private void ReadFile()
    {
        var lines = File.ReadLines("Data.csv");
        var numbers = new List<List<double>>();
        var separators = new[] { ',', ' ' };
        /*System.Threading.Tasks.*/
        Parallel.ForEach(lines, line =>
        {
            var list = new List<double>();
            foreach (var s in line.Split(separators, StringSplitOptions.RemoveEmptyEntries))
            {
                double i;

                if (double.TryParse(s, out i))
                {
                    list.Add(i);
                }
            }

            lock (numbers)
            {
                numbers.Add(list);
            }
        });

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