请教高手

[fengzhan_free]

用任意程序编写，找出一个字符串中的数字串的个数，如erd3534hftyr8731beqrty3436tyle中有三个数字串。

[Lovely_baby]

用正则表达式 
procedure TForm1.Button1Click(Sender: TObject); 
var 
reg: TPerlRegEx; 
begin 
reg := TPerlRegEx.Create(nil); 
reg.Subject := erd3534hftyr8731beqrty3436tyle'; 
reg.RegEx  := '[^0-9]'; 
reg.ReplaceAll; 
ShowMessage(reg.Subject); 
FreeAndNil(reg); 
end; 

[「已注销」]

MatchCollection mc = Regex.Match("\d+");
//mc.Count

[jiangshun]

            string strContent = @"erd3534hftyr8731beqrty3436tyle";

            Regex reg = new Regex(@"\d+");
            Console.WriteLine(reg.Matches(strContent).Count.ToString());

[智者知已应修善业]

^:^

[fengzhan_happy]

ss

[职业经理人]

[Quote=引用 1 楼 lovely_baby 的回复:]
C# code
用正则表达式
procedure TForm1.Button1Click(Sender: TObject);var
reg: TPerlRegEx;
begin
reg := TPerlRegEx.Create(nil);
reg.Subject := erd3534hftyr8731beqrty3436tyle';reg.RegEx :='[^0-9]';
reg.?-
[/Quote]

[fengzhan_happy]

string strContent = @"erd3534hftyr8731beqrty3436tyle";
Regex reg = new Regex(@"\d+");
Console.WriteLine(reg.Matches(strContent).Count.ToString());