正则表达式不太好，求指教！

Question

我有2个字符串需要用正则表达式来取出：

string a = "#(BBC.apple) #(BBC.eat_food) #(BBC.cat)#(BBC.dog)"
//apple和eat_food中间有空格,cat和dog中没有
string b = "aaaabbbbcccc abc ab ccc#(BBC.LOL) aaa vvv #(BBC.O)"
//LOL前面是没有空格的直接连接ccc，O前面有空格

假设

#(BBC.apple) = apple

#(BBC.eat_food) = eat_food

#(BBC.cat) = cat

#(BBC.dog) = dog

#(BBC.LOL) = LOL

#(BBC.O) = O

请教怎么样吧#(BBC.###）这种格式都取出来，然后换成已知的名字(apple,eat_food ...)以后再把他们换回去，有空格的地方和没有空格的地方都没有变。

Answer 1

  private void button1_Click(object sender, EventArgs e)
    {
      string a = "#(BBC.apple) #(BBC.eat_food) #(BBC.cat)#(BBC. dog)";

      string parren = @"#\(BBC.(\w|\s)*\)";
      MatchCollection mc= Regex.Matches(a, parren, RegexOptions.IgnoreCase);
      for (int i = 0; i < mc.Count; i++)
      {
        MessageBox.Show(mc[i].Value);
      }
      MessageBox.Show(mc.Count.ToString());

    }

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http://blog.csdn.net/zx13525079024

Answer 2

void Main()
{
	 string a = "#(BBC.apple) #(BBC.eat_food) #(BBC.cat)#(BBC. dog)";
	 string b = "aaaabbbbcccc abc ab ccc#(BBC.LOL) aaa vvv #(BBC.O)";
	 Regex reg=new Regex( @"#\(BBC\.([^)]+)\)");
	 foreach(Match m in reg.Matches(a+b))
	 {
	   Console.WriteLine(m.Value);
	 }
	 a=reg.Replace(a,"$1");
	 b=reg.Replace(b,"$1");
	 Console.WriteLine(a);
	 Console.WriteLine(b);
	 
	 /*
	 #(BBC.apple)
	#(BBC.eat_food)
	#(BBC.cat)
	#(BBC. dog)
	#(BBC.LOL)
	#(BBC.O)
	apple eat_food cat dog
	aaaabbbbcccc abc ab cccLOL aaa vvv O
	 */
}

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