[英]Searching for words in richTextBox (windows forms, c#)
我需要帮助在richTextBox 中计算相同的单词,并且还想为它们分配数字/单词。 一个盒子里有 500,000 多个字,而且都只写了 3 到 6 遍。 一种解决方案是提前写下我正在寻找的单词,在一个框中搜索并为其分配一个数字/单词。 但是要这样做的太多了,如果有更快的方法,它将对我有很大帮助。 提前致谢!
这是我现在正在做的事情的代码,它不代表我在问什么。
for (int i = 0; i < Url.Length; i++)
{
doc = web.Load(Url[i]);
int x=0;
int y=0;
//here was a long list of whiles for *fors* down there,
//removed to be cleaner for you to see
//one example:
//while (i == 0)
//{
// x = 18;
// y = 19;
// break;
//}
for (int w = 0; w < x; w++)
{
string metascore = doc.DocumentNode.SelectNodes("//*[@class=\"trow8\"]")[w].InnerText;
richTextBox1.AppendText("-----------");
richTextBox1.AppendText(metascore);
richTextBox1.AppendText("\r\n");
}
for (int z = 0; z < y; z++)
{
string metascore1 = doc.DocumentNode.SelectNodes("//*[@class=\"trow2\"]")[z].InnerText;
richTextBox1.AppendText("-----------");
richTextBox1.AppendText(metascore1);
richTextBox1.AppendText("\r\n");
}
}
假设您有文本、从文件中读取、从某个网页下载或 RTB...使用 LINQ 将为您提供所需的一切。
string textToCount = "...";
// second step, split text by delimiters of your own
List<string> words = textToCount.Split(' ', ',', '!', '?', '.', ';', '\r', '\n') // split by whatever characters
.Where(s => !string.IsNullOrWhiteSpace(s)) // eliminate all whitespaces
.Select(w => w.ToLower()) // transform to lower for easier comparison/count
.ToList();
// use LINQ helper method to group words and project them into dictionary
// with word as a key and value as total number of word appearances
// this is the actual magic. With this in place, it's easy to get statistics.
var groupedWords = words.GroupBy(w => w)
.ToDictionary(k => k.Key, v => v.Count());`
// to get various statistics
// total different words - count your dictionary entries
groupedWords.Count();
// the most often word - looking for the word having the max number in the list of values
groupedWords.First(kvp => kvp.Value == groupedWords.Values.Max()).Key
// mentioned this many times
groupedWords.Values.Max()
// similar for min, just replace call to Max() with call to Min()
// print out your dictionary to see for every word how often it's metnioned
foreach (var wordStats in groupedWords)
{
Console.WriteLine($"{wordStats.Key} - {wordStats.Value}");
}
此解决方案类似于上一篇文章。 主要区别在于该解决方案使用按单词分组,这很简单并将其放入字典。 在那里,可以很容易地找到很多。
假设你有一个 RichTextBox 在某个地方跑来跑去,我们会称他为 Bob:
//Grab all the text from the RTF
TextRange BobRange = new TextRange(
// TextPointer to the start of content in the RichTextBox.
Bob.Document.ContentStart,
// TextPointer to the end of content in the RichTextBox.
Bob.Document.ContentEnd
);
//Assume words are sperated by space, commas or periods, split on that and thorw the words in a List
List<string> BobsWords = BobRange.Text.Split(new char[] { ' ', ',', '.' }, StringSplitOptions.RemoveEmptyEntries).ToList<string>();
//Now use Linq for .net to grab what you want
int CountOfTheWordThe = BobsWords.Where(w => w == "The").Count();
//Now that we have the list of words we can create a MetaDictionary
Dictionary<string, int> BobsWordsAndCounts = new Dictionary<string, int>();
foreach( string word in BobsWords)
{
if (!BobsWordsAndCounts.Keys.Contains(word))
BobsWordsAndCounts.Add( word, BobsWords.Where(w => w == word).Count(); )
}
这就是你给一个词分配一个数字的意思吗? 您想知道 RichTextBox 中每个单词的数量吗?
也许添加一些上下文?
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