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int intCount = 0;
for (int i = 0; i < str.Length-1; i++)
{
if (str[i] == 'a' && str[i + 1] == 'a')
intCount++;
}
string partten = "aa";
string source="dfsafaaadfdfaaaddaappaa";
if(Regex .IsMatch (source ,partten )==true )
{
Response.Write(Regex.Matches(source, partten, RegexOptions.Multiline).Count.ToString ());
}
string partten = "aa";
string source="dfsafaaadfdfaaaddaappaa";
if(Regex .IsMatch (source ,partten )==true )
{
response.Write(Page,Regex.Matches(source, partten, RegexOptions.Multiline).Count.ToString ());
}