请问如何用正则表达式去 空格和括号

[leonwan]

各位知道的大侠帮帮忙

[王集鹄]

string S = " f asdf(!!!!)f a f a";
Text = System.Text.RegularExpressions.Regex.Replace(S,
@"[\s\(\)]+", "");

[johnny1983]

String a="this is a demo(remove space)";
a=a.Replace("(","").Replace(")","");
Regex re = new Regex(@"\s+");
a = re.Replace(a, " ").Trim();
System.Console.WriteLine(a);
System.Console.Read();

[zhmvb]

private void b()
{
string str = "A B (C) D ";
this.labeTxt.Text = Regex.Replace(str,@"\s*\)*\(*","") + ";" ;
}