使用Array从文本文件中删除重复项

本文关键字：删除 文件 Array 文本 使用 | 更新日期: 2023-09-27 18:15:13

这是我的代码，但我不确定什么放在某个区域(见下文)，因为我一直在那里得到一个错误。我基本上是加载一个文本文件，然后删除重复的任何值，然后输出文本文件的更新副本。

文本文件看起来像，

    5
    5
    3
    2
    2
    3
我的代码是 
{
public partial class Form1 : Form
{
    //Global Variable
    int[] Original;
    public Form1()
    {
        InitializeComponent();
    }
    //Exit Application
    private void mnuExit_Click_1(object sender, EventArgs e)
    {
        this.Close();
    }
    //Load File
    private void mnuLoad_Click_1(object sender, EventArgs e)
    {
        //Code to Load the Numbers From a File
        OpenFileDialog fd = new OpenFileDialog();
        //Open the File Dialog and Check If A File Was Selected
        if (fd.ShowDialog() == DialogResult.OK)
        {
            //Open File to Read
            StreamReader sr = new StreamReader(fd.OpenFile());
            int Records = int.Parse(sr.ReadLine());
            //Assign Array Sizes
            Original = new int[Records];
            //Go Through Text File              
            for (int i = 0; i < Records; i++)
            {
                Original[i] = int.Parse(sr.ReadLine());
            }
        }
    }
    private void btnOutput_Click(object sender, EventArgs e)
    {
        //Store Original Array
        string Output = "Original 'n";
        //Output Original Array
        for (int i = 0; i < Original.Length; i++)
        {
            Output = Output + Original[i] + "'n";
        }
        //Create TempArray
        int[] TempArray = new int[Original.Length];
        //Set TempArray Equal to Original Array
        for (int i = 0; i < Original.Length; i++)
        {
            TempArray[i] = Original[i];
        }
        //Current Index
        int Counter = 0;
        //Loop Through Entire Array
        for (int i = 0; i < TempArray.Length; i++)
        {
            for (int j = i + 1; j < TempArray.Length; j++)
            {
                //Replace Duplicate Values With '-1'
                if (TempArray[i] == TempArray[j])
                {
                    TempArray[j] = -1;
                    Counter++;
                }
            }
        }
        //Set Size of Original Array
        Original = new int[Original.Length - Counter];
        //Counter = 0;
        //Remove -1 Values
//error begins here
for (int i = 0; i < Original.Length; i++)
        {
            for (int j = i + 1; j < Original.Length; j++)
            {
                //Set Original Array Equal to TempArray For Values Not Equal To '-1'
                if (j != -1)
                {
                    Original[j] = TempArray[j];
                    //Counter++;
                }
            }
        }
 //error ends here
        //Final Output -- The New Array
        Output = Output + "Original Without Duplicates'n";
        for (int i = 0; i < Original.Length; i++)
        {
            Output = Output + Original[i] + "'n";
        }
        lblOutput.Text = Output;
    }
}
}

使用Array从文本文件中删除重复项

我理解你的逻辑，但我们都是懒惰的程序员。您可以简单地使用LINQ来防止复制。像之前那样加载数组，并使用Distinct方法，如下所示:

int[] newArray = Orginal.Distinct().ToArray();

古德勒克。

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