如何使用正则表达式进行查找？

[kills]

如题
比如我要爱一个string aaa="asdasdgggsadasd";中查找ggg该怎么办？

[saucer]

why do you need regular expressions when you can just do
int n = aaa.IndexOf("ggg");
if (n >= 0)
{
//aaa contains "ggg";
}

but if you insist, try

bool bIn = System.Text.RegularExpressions.Regex.IsMatch(aaa,"ggg");

[jsljy]

被人抢先了：）