使用数组从文本文件中删除重复项

时间:2015-09-29 17:38:12

标签: c#

这是我的代码,但我不确定在某个区域放置什么(见下文),因为我一直在那里收到错误。我基本上加载一个文本文件,然后删除任何重复的值,然后输出文本文件的更新副本。

文本文件如下,

    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;

    }
}
}

1 个答案:

答案 0 :(得分:1)

我理解你的逻辑,但是所有懒惰的程序员都是如此。您可以简单地使用LINQ以防止重复。像你一样加载数组并使用Distinct方法,如下所示:

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

古德勒克。