C＃中不断得到索引超出范围使用＆QUOT时，阵列[X]。载有（数组2 [Y]＆QUOT; [英] c# Keep getting index is out of bounds when using "array[x].contains(array2[y]"

问题描述

我一直在敲打我的脑袋上这一段时间。运行此code时，我不断收到索引越界..

基本上，我参加了一个文本框，把它分解成一个数组，然后使用数组中的每个指标来比较完整的字符串数组。粘贴相关code，你们可以看到我做错了什么？

我给自己定把一个错误的错误点附近。 （小于-----）

 公共部分类主窗口：窗口
{    字符串[] = kbsubject新的字符串[4000];
    字符串[] = kbbody新的字符串[4000];
    字符串[] = wordsplit新的字符串[4000];
    INT [] =命中INT新[4000];
     StreamWriter的WriteBody =新的StreamWriter（kbsubjecttest.txt）;
    StreamReader的readSubject =新的StreamReader（kbsubject.txt）;
    StreamReader的readBody =新的StreamReader（kbbody.txt）;
    INT IndexHolder = 0，计数器= 0，counterSearch = 0，WordsIndex = 0，泛意语= 0，ArrayIndex = 0;
    串compareBody，compareSubject;
    公共主窗口（）
    {
        的InitializeComponent（）;
    }    私人无效的button1_Click（对象发件人，RoutedEventArgs E）
    {
        wordsplit = SearchBox.Text.Split（''）;
        diagWindow.Items.Add（wordsplit.Length）;
        diagWindow.Items.Add（preforming通过拆分搜索）;
        WordsIndex = 1;
        泛意语= 1;
        而（counterSearch！= wordsplit.Length）
        {
            如果（kbbody [泛意语]。载（wordsplit [WordsIndex]））≤; --------
            {
                点击[ArrayIndex] =泛意语;
                ArrayIndex ++;
                泛意语++;
                WordsIndex ++;
            }
            其他
            {
                ArrayIndex ++;
                泛意语++;
                WordsIndex ++;
            }        }        }
 

解决方案

几件事情：

此行是你的错误：结果
WordsIndex = 1; //我认为这个问题是安静的简单，它为什么从1开始？ 它应该是零

泛意语应该从0开始，以及，什么时候应该停止迭代：结果
counterSearch＆LT; wordsplit.Length 而非 counterSearch！= wordsplit.Length

如果这个code被写入在两个如果和其他就应该转移到这两个范围后：

  ArrayIndex ++;
泛意语++;
WordsIndex ++;
 

固定code：

 公共部分类主窗口：窗口
{    字符串[] = kbsubject新的字符串[4000];
    字符串[] = kbbody新的字符串[4000];
    字符串[] = wordsplit新的字符串[4000];
    INT [] =命中INT新[4000];
     StreamWriter的WriteBody =新的StreamWriter（kbsubjecttest.txt）;
    StreamReader的readSubject =新的StreamReader（kbsubject.txt）;
    StreamReader的readBody =新的StreamReader（kbbody.txt）;
    INT IndexHolder = 0，计数器= 0，counterSearch = 0，WordsIndex = 0，泛意语= 0，ArrayIndex = 0;
    串compareBody，compareSubject;
    公共主窗口（）
    {
        的InitializeComponent（）;
    }    私人无效的button1_Click（对象发件人，RoutedEventArgs E）
    {
        wordsplit = SearchBox.Text.Split（''）;
        diagWindow.Items.Add（wordsplit.Length）;
        diagWindow.Items.Add（preforming通过拆分搜索）;
        WordsIndex = 0;
        泛意语= 0;
        而（counterSearch＆LT; wordsplit.Length）
        {
            如果（kbbody [泛意语]。载（wordsplit [WordsIndex]））≤; --------
            {
                点击[ArrayIndex] =泛意语;
            }            ArrayIndex ++;
            泛意语++;
            WordsIndex ++;
        }
        }
 

I've been banging my head on this for a while. I keep getting Index out of Bounds when running this code..

basically, I took a textbox, split it up into an array, then using each index of the array to compare to a array full of strings. Pasted relevant code, can you guys see what I did wrong?

I've set put an error near the point of error. ( <----- )

public partial class MainWindow : Window
{

    string[] kbsubject = new string[4000];
    string[] kbbody = new string[4000];
    string[] wordsplit = new string[4000];
    int[] hits = new int[4000];
     StreamWriter WriteBody = new StreamWriter("kbsubjecttest.txt");
    StreamReader readSubject = new StreamReader("kbsubject.txt");
    StreamReader readBody = new StreamReader("kbbody.txt");
    int IndexHolder = 0, counter = 0, counterSearch = 0, WordsIndex = 0, counterWord=0, ArrayIndex = 0;
    string compareBody, compareSubject;


    public MainWindow()
    {
        InitializeComponent();




    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
        wordsplit = SearchBox.Text.Split(' ');
        diagWindow.Items.Add(wordsplit.Length);
        diagWindow.Items.Add("Preforming search by split");
        WordsIndex = 1;
        counterWord = 1;
        while (counterSearch != wordsplit.Length)
        {
            if (kbbody[counterWord].Contains(wordsplit[WordsIndex]))   <--------
            {
                hits[ArrayIndex] = counterWord;
                ArrayIndex++;
                counterWord++;
                WordsIndex++;




            }
            else
            {
                ArrayIndex++;
                counterWord++;
                WordsIndex++;
            }

        }



        }

解决方案

Few things:

This line is your bug:
WordsIndex = 1; // I think the issue it quiet simple, why it's starting from 1? it should be zero.

counterWord should start from 0 as well, and you should stop iterating when:
counterSearch < wordsplit.Length and not counterSearch != wordsplit.Length

If this code is written in both if and else it should moved to after both scopes:

ArrayIndex++;
counterWord++;
WordsIndex++;

Fixed code:

public partial class MainWindow : Window
{

    string[] kbsubject = new string[4000];
    string[] kbbody = new string[4000];
    string[] wordsplit = new string[4000];
    int[] hits = new int[4000];
     StreamWriter WriteBody = new StreamWriter("kbsubjecttest.txt");
    StreamReader readSubject = new StreamReader("kbsubject.txt");
    StreamReader readBody = new StreamReader("kbbody.txt");
    int IndexHolder = 0, counter = 0, counterSearch = 0, WordsIndex = 0, counterWord=0, ArrayIndex = 0;
    string compareBody, compareSubject;


    public MainWindow()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
        wordsplit = SearchBox.Text.Split(' ');
        diagWindow.Items.Add(wordsplit.Length);
        diagWindow.Items.Add("Preforming search by split");
        WordsIndex = 0;
        counterWord = 0;
        while (counterSearch < wordsplit.Length)
        {
            if (kbbody[counterWord].Contains(wordsplit[WordsIndex]))   <--------
            {
                hits[ArrayIndex] = counterWord;
            }

            ArrayIndex++;
            counterWord++;
            WordsIndex++;                
        }
        }

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