Shulou(Shulou.com)06/03 Report--

In this issue, the editor will bring you about the .NET dirty word filtering algorithm and its application. The article is rich in content and analyzes and describes it from a professional point of view. I hope you can get something after reading this article.

BadWordsFilter.cs class

Using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Collections;using System.Data;namespace WNF {public class BadWordsFilter {private HashSet hash = new HashSet (); / / keyword private byte [] fastCheck = new byte [char.MaxValue]; private byte [] fastLength = new byte [char.MaxValue]; private BitArray charCheck = new BitArray (char.MaxValue); private BitArray endCheck = new BitArray (char.MaxValue); private int maxWordLength = 0 Private int minWordLength = int.MaxValue; public BadWordsFilter () {} / / initialization keyword public void Init (DataTable badwords) {for (int j = 0; j < badwords.Rows.Count; jungle +) {string word = badwords.Rows [j] [0] .ToString (); maxWordLength = Math.Max (maxWordLength, word.Length); minWordLength = Math.Min (minWordLength, word.Length) For (int I = 0; I < 7 & & I < word.Length; iTunes +) {fastCheck [word [I]] | = (byte) (1

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