StreamReader sr = new StreamReader("C:\\Users\\Administrator\\Desktop\\blogbbs\\dd.txt",Encoding.Default);
StringBuilder sb = new StringBuilder();
string s = "";
string patt = "【(.+?)】";
Regex r = new Regex(patt);
while((s = sr.ReadLine()) != null)
{
if (r.IsMatch(s))
{
Match m = r.Match(s);
sb.AppendLine(m.Groups[1].Value);
}
}
File.AppendAllText("C:\\Users\\Administrator\\Desktop\\blogbbs\\123.txt",sb.ToString(),Encoding.Default);