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//ÕýÔò±í´ïʽ
Regex r;

MatchCollection mc;
string pattern;
pattern = @"(?<Character>[a-zA-Z])";
r = new Regex(pattern);
mc=r.Matches("Hello World!");
foreach ( Match m in mc)
{
Console.WriteLine("{0}", m.Groups["Character"].Value );
}



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  struct hostent *hp; 
char AlarmDevIP[20];  
  int x2;

hp = gethostbyname("www.google.com");
if (hp)
{ ......

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#include <stdio.h>
int main()
{
int i;
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