Question

我想要一个正则表达式规则 :两个字符中间可以是任何一个字符

比如:我想过滤一些违禁词

如办证,办-证,办|证
就是 含有办证字眼,并且不管中间多一个什么字符都算是违禁词语
不知有没有这种正则表达式呢

Answer 1

[办](\w+)[证]

vb.net

Option Strict Off
Option Explicit On

Namespace Regulator

Public Class RegularExpression

Private Sub Test()
Dim regex As String = "([办])(\w+)([证])"
Dim options As System.Text.RegularExpressions.RegexOptions = ((System.Text.RegularExpressions.RegexOptions.IgnorePatternWhitespace Or System.Text.RegularExpressions.RegexOptions.Multiline) _
Or System.Text.RegularExpressions.RegexOptions.IgnoreCase)
Dim reg As System.Text.RegularExpressions.Regex = New System.Text.RegularExpressions.Regex(regex, options)
End Sub
End Class
End Namespace

c#
namespace Regulator
{

public class RegularExpression
{

private void Test()
{
string regex = "([办])(\\w+)([证])";
System.Text.RegularExpressions.RegexOptions options = ((System.Text.RegularExpressions.RegexOptions.IgnorePatternWhitespace | System.Text.RegularExpressions.RegexOptions.Multiline)
| System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regex reg = new System.Text.RegularExpressions.Regex(regex, options);
}
}
}

Answer 2

<script type="text/javascript">
function check()
{
var reg = /.*(办.?证).*/;
var str = document.getElementById("txt").value;
if(reg.test(str))
{
alert(str.replace(reg,"$1") + "属违禁词");
return false;
}
return true;
}
</script>
<input type="text" id="txt" /><input type="button" value="提交" onclick="return check();" />

Answer 3

java中:
String o = "办-证"
Pattern p = Pattern.compile("[办]{1}+[证]{1}+");
//这个{1}+是必须完全匹配的意思
Matcher m= p.matcher(o);
boolean b = m.matches();