字符串去掉符号的问题

[totsheng]

没有规律的字符串，想要把所有符号都去掉，只留字母、数字或者汉字？
请问该字符串怎么处理？

[zhaozhijun0207]

那不是跟屏蔽sql注入一个原理

[pztx1992]

using System;
using System.Text;
using System.Text.RegularExpressions;
using System.Collections;
using System.Collections.Generic;

namespace CSDN
{
    class Application
    {
        static void Main(string[] args)
        {
            string s = "sdf$%^$%546";
            string sNew = Regex.Replace(s,"[^a-zA-Z0-9]","");
        }
    }
}

[pztx1992]

没看到汉字....

            string s = "sdf$%^$%546";
            string sNew = Regex.Replace(s,"\\W","");

[fancystyle]

用正则.如果是C#的话

Regex.Replace(subjectString, @"[^\w]", "", RegexOptions.IgnoreCase);

[pztx1992]

能帮我找找不加ref也能引用传递的例子吗

[totsheng]

[Quote=引用 3 楼 pztx1992 的回复:]
没看到汉字....


C# code

string s = "sdf$%^$%546";
string sNew = Regex.Replace(s,"\\W","");
[/Quote]
谢谢