Em relação ao problema da filtragem suja de dicionário - usando expressões regulares para filtrar dados sujos

方法一：使用正则表达式

1//脏字典数据存放文件路径
2 string estática privada FILE_NAME="zang.txt";
3 //脏数据字典表，如：脏数据一|脏数据二|脏数据三
4 string estática pública dirtyStr="";
5
6 ValidDirty público()
7 {
8 se (HttpRuntime.Cache["Regex"]==nulo)
9 {
10 sujoStr=ReadDic();
11 //用于检测脏字典的正则表达式
12 Regex validReg= new Regex("^((?!"+dirtyStr+").(?<!"+dirtyStr+"))*$",RegexOptions.Compiled|RegexOptions.ExplicitCapture);
13 HttpRuntime.Cache.Insert("Regex",validateReg,null,DateTime.Now.AddMinutes(20),TimeSpan.Zero);
14}
15
16}
17 string privada ReadDic()
18 {
19 FILE_NAME=Ambiente.CurrentDirectory+" \"+FILE_NAME ;
20
21 se (!File.Exists(FILE_NAME))
22 {
23 Console.WriteLine("{0} não existe.", FILE_NAME);
24 retornar "";
25}
26 StreamReader sr = Arquivo.OpenText(FILE_NAME);
27 String entrada="";
28 enquanto (sr.Peek() > -1)
29 {
30 entrada += sr.ReadLine() ;
31}
32
33 sr.Fechar();
34 entrada de retorno;
35
36}
37
38
39 bool público ValidByReg(string str)
40 {
41 Regex reg=(Regex)HttpRuntime.Cache["Regex"];
42 retornar reg.IsMatch(str);
43
44.

式了一下是 1.238秒,大家有没有更好的方法,请不吝赐教！

方法二:普通循环查找方法

public bool ValidGeneral(string str)
{

if(!Arquivo.Exists(FILE_NAME))
{
Console.WriteLine("文件路径或者文件路径不存在错误信息") ;
retornar falso;
}
outro
{
StreamReader objReader = novo StreamReader(FILE_NAME,System.Text.Encoding.GetEncoding("gb2312"));
string sLine="";
ArrayList arrText = new ArrayList();

enquanto (sLine! = nulo)
{
sLine = objReader.ReadLine();
if (sLine! = nulo)
arrText.Add(sLine);

}
objReader.Close();

foreach (string sOutput em arrText)
{
string[] strArr=sOutput.Split('|');

for (int i = 0; i < strArr.Length; i++)
{
if (str.IndexOf(strArr[i])!=-1)
{
retornar falso;
}

}

}
retornar verdadeiro;

}

}

以下是测试的方法,有什么问题还大家请指出！

1DateTime t1 =DateTime.Now;
2 stringstr="213";
3 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
4 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
5 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
6 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
7 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
8 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
9 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
10 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
11 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
12 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
13 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
14 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
15 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
16 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
17 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
18 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
19 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
20 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
21 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
22 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
23 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
24 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
25 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
26 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
27 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
28 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
29 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
30 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
31 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
32 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
33 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
34 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
35 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
36 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
37 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
38 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
39 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
40 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
41 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
42 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
43 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
44 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
45 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
46 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
47 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
48 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
49 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
50 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
51 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
52 str+="珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋珍惜水晶之恋";
53 ValidDirty vd=new ValidDirty() ;
54 Console.WriteLine(vd.ValidByReg(str)) ;
55 DataHora t2 =DataHora.Agora;
56 Intervalo de Tempo ts=t2-t1;
57 Console.WriteLine(ts.TotalMilliseconds) ;
58 Console.Read() ;

脏字典下载