字符串中如何截取数字

[caolilei198537]

比如：

bsdfqwehiuyiu2543

想要获取的结果为：2543

[huwei12345]

正则表达式

[zpcoder]

        string a = "aa1a3bbb45c";
        string result = string.Empty;
        CharEnumerator ce = a.GetEnumerator();
        while (ce.MoveNext())
        {
            if (char.IsDigit(ce.Current))
                result += ce.ToString();
        }

[cqq]

string strInput = "bsdg4334j234hg24g23f4g2f34243hfqwehiuyiu2543";
string strOutput=Regex.Replace(strInput, "[^\\d]", "");

[cqq]

  string strInput = "bsdg4334j234hg24g23f4g2f34243hfqwehiuyiu2543";
  string strOutput=Regex.Replace(strInput, "\\D", "");

[张智gg]

string str1 = "hfgfgfgu87654gfg";
string str2 = Regex.Replace(str1, "[^\\d]", "");
Response.Write(str2);

[myhope88]

写正则表达式，或者自己写个算法分析下

[yang_5]

楼上都可以解决了，怎么还不结贴！

[HolyPlace]

[Quote=引用 3 楼 cqq 的回复:]

C# code


string strInput = "bsdg4334j234hg24g23f4g2f34243hfqwehiuyiu2543";
string strOutput=Regex.Replace(strInput, "[^\\d]", "");
[/Quote]

这个不错