从文本文件中读取数据，然后使用C#将每一行分配到单独的数组中. [英] Reading data from a text file and assigning each row into separate arrays using C#.

问题描述

假设我有一个文本文件，其数据如下所示，我想读取第一行并将元素存储在一个数组中.读取第二行并存储在第二个数组中，依此类推.稍后，我将对数组进行一些操作.您能帮我用C#做到这一点吗? (我是初学者)

输入文本文件:

5,7,3,6,9,8,3,5,7
5,6,8,3,4,5
6,4,3,2,65,8,6,3,3,5,7,4
4,5,6,78,9,4,2,5,6

我还想检查行数.我将找出每一行的平均值以及每一行的其他类似计算.所以我想遍历列表并为每个数组执行.

这是我一直在尝试的代码:

 公共 静态  void  ReadInputFile(字符串 [] args)
        {
            List< float [] > 数组= 新 List< float []  int 计数器=  0 ;
            字符串行；

            // 读取文件
            System.IO.StreamReader文件= 新建 System.IO.StreamReader(" )；
            同时((line = file.ReadLine())！= 空)
            {
                // 将该行拆分为，分隔符上的字符串数组
                字符串 [] splitLine = line.ToString().Split(' // 如果我们的拆分不是null且长度为正值
                如果(splitLine！= 空&& splitLine.Length >   0 )
                {

                    // 创建一个与我们的新字符串相同大小的lineArray [] 
                    浮动 [] lineArray = 新 浮动 [ splitLine.Length];

                     int  posCounter =  0 ;

                     foreach (字符串 splitValue  in  splitLine中)
                    {
                        // 遍历拆分中的每个值，然后尝试进行转换
                        // 将其转换为int并将其推入数组
                        尝试
                        {
                            lineArray [posCounter] =  float  .Parse(splitValue);
                        }
                        捕获 {}
                        posCounter ++;
                    }

                    // 如果我们的lineArray的长度为正，则为我们的
                    // 数组列表，供以后处理.
                    如果(lineArray.Length >   0  )
                    {
                        arrays.Add(lineArray);
                    }
                }
                计数器++;
            }
             int  [] size = 新  int  [柜台];


            file.Close();

            // 暂停屏幕.
            Console.ReadLine();
        } 

解决方案

 // 读取data.txt文本文件.
 var  data = System.IO.File.ReadAllText(" );

// 创建新的float [] 列表
 var 数组= 新列表< float [] > ();

// 将数据文件内容分成几行
 var 行= data.Split(新 [] {'   \ r'，'  \ n' }，StringSplitOptions.RemoveEmptyEntries)；

// 循环所有行
 foreach ( var 行 in 行)
{
    // 创建新列表< float>代表该行中所有用逗号分隔的数字
     var  lineArray = 新列表< float>();

    // 按行滑动，并遍历所有数字值
     foreach ( var  s 在行中. (新 [] {' ，' }，StringSplitOptions.RemoveEmptyEntries))
    {
        // 将转换后的数值添加到我们的lineArray 
        lineArray.Add(Convert.ToInt64(s));
    }
    // 将lineArray添加到主数组
    arrays.Add(lineArray.ToArray());

    // 重复循环，直到没有更多行为止
}

 var  numberOfRows = lines.Count();
 var  numberOfValues = arrays.Sum(s = >  s.Length); 

 公共  class 数据
{
  公共 字符串 [] arr = 新 字符串 [ 5 ];
  公共 字符串 [] arr1 = 新 字符串 [ 5 ];
  公共 字符串 m，n;
  
  公共 无效 getdata()
  {
    System.IO.StreamReader sr = 新 System.IO.StreamReader(" )；
    字符 [] x = 空；
    字符 [] y = 空；
    
    for ( int  i =  1 ; i <   10 ; i ++)// 第一行的示例
   {
    x = 新 字符 [ 1 ];
    sr.Read(x， 0 ，x.Length);
    y = 新 字符 [ 1 ];
    sr.Read(y， 0 ，y.Length);
    m = 新 字符串(x);
    arr [i] = m;
    n = 新 字符串(y);
    arr1 [i] = n;
   }
 }
} 

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#. (I''m a beginner)

Input text file:

5,7,3,6,9,8,3,5,7
5,6,8,3,4,5
6,4,3,2,65,8,6,3,3,5,7,4
4,5,6,78,9,4,2,5,6

I would also like to check the number of rows. I would be finding out the mean of each row and some other similar calculations on each row. So I would like to loop through the list and carry out for each of the arrays.

This is the code I have been trying around with:

public static void ReadInputFile(string[] args)
        {
            List<float[]> arrays = new List<float[]>();

            int counter = 0;
            string line;

            // Read the file
            System.IO.StreamReader file = new System.IO.StreamReader("Data.txt");
            while ((line = file.ReadLine()) != null)
            {
                // split the line into a string array on , separator
                string[] splitLine = line.ToString().Split(',');

                // if our split isnt null and has a positive length
                if (splitLine != null && splitLine.Length > 0)
                {

                    // create a lineArray the same size as our new string[]
                    float[] lineArray = new float[splitLine.Length];

                    int posCounter = 0;

                    foreach (string splitValue in splitLine)
                    {
                        // loop through each value in the split, try and convert
                        // it into an int and push it into the array
                        try
                        {
                            lineArray[posCounter] = float.Parse(splitValue);
                        }
                        catch { }
                        posCounter++;
                    }

                    // if our lineArray has a positive length then at it to our
                    // list of arrays for processing later.
                    if (lineArray.Length > 0)
                    {
                        arrays.Add(lineArray);
                    }
                }
                counter++;
            }
            int[] size = new int[counter];


            file.Close();

            // Suspend the screen.
            Console.ReadLine();
        }

解决方案

// Read the data.txt textfile.
var data = System.IO.File.ReadAllText("Data.txt");

// Create a new List of float[]
var arrays = new List<float[]>();

// Split data file content into lines
var lines = data.Split(new[] {'\r', '\n'}, StringSplitOptions.RemoveEmptyEntries);

// Loop all lines
foreach (var line in lines)
{
    // Create a new List<float> representing all the commaseparated numbers in this line
    var lineArray = new List<float>();

    // Slipt line by , and loop through all the numeric valus
    foreach (var s in line.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries))
    {
        // Add converted numeric value to our lineArray 
        lineArray.Add(Convert.ToInt64(s));
    }
    // Add lineArray to main array
    arrays.Add(lineArray.ToArray());

    // Loop repeats until there are noe more lines
}

var numberOfRows = lines.Count();
var numberOfValues = arrays.Sum(s => s.Length);

Hi..I only showed for the first row to read text and store in array.Hope below code can help you.

public class Data
{  
  public string[] arr = new string[5];
  public string[] arr1 = new string[5];  
  public string m,n;
  
  public void getdata()
  {
    System.IO.StreamReader sr = new System.IO.StreamReader("Data.txt");
    char[] x = null;
    char[] y = null;    
    
   for (int i = 1; i < 10; i++) //example for first row
   {
    x = new char[1];
    sr.Read(x, 0, x.Length);
    y = new char[1];
    sr.Read(y, 0, y.Length);
    m = new string(x);
    arr[i] = m;
    n = new string(y);
    arr1[i] = n;
   }
 }
}

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