查找第二个字符的正则表达式是Alpha后跟1个数字

Regex to Find Second Char is Alpha up to 5 Alpha Followed by 1 numeral.

查找第二个字符的正则表达式是高达5 Alpha的Alpha,后跟1个数字。

Thanks

4 个解决方案

#1

I was not successful in implementing any of the solutions above, probably my poor explanation of need. I did solve it in code not using Regex. Thanks to everyone who took the time to help. For those that thought this was homework, it was not.

我没有成功实施上述任何解决方案,可能是我对需求的不良解释。我确实在不使用Regex的代码中解决了它。感谢所有花时间提供帮助的人。对于那些认为这是家庭作业的人来说,事实并非如此。

Here is some sample data.

这是一些示例数据。

Need this

I INDY2 ' INDY VECTOR DP FOR FILING '041802 REM 59268640 I JODUB3 ' AIRWAY FOR JODUB SID '051205 CLW 59268649

I INDY2'INDY VECTOR DP FOR FILING'041802 REM 59268640 I JODUB3'AIRWAY FOR JODUB SID'051205 CLW 59268649

Don't need this

不需要这个

I J149 ' GDK 59265224 I APE074 ' 43092 REF 59265777

I J149'GDK 59265224 I APE074'43092 REF 59265777

This is how I tested in code.

这就是我在代码中测试的方式。

Dim IsSidStar As Boolean = False
        If aAirways.Name.Length > 2 Then
            Dim a2ndChar As Char = aAirways.Name(1)
            Dim alastChar As Char = aAirways.Name(aAirways.Name.ToString.Length - 1)
            Dim a2ndlastChar As Char = aAirways.Name(aAirways.Name.ToString.Length - 2)

            If Char.IsLetter(a2ndChar) = True AndAlso Char.IsNumber(alastChar) = True AndAlso Char.IsNumber(a2ndlastChar) = False Then
                IsSidStar = True
            End If
        End If

#2

Double-checking...

2nd character is alpha

第二个字符是alpha

up to 5 following alpha (i.e., total 1 - 6 alpha)

最多5个跟随alpha(即总共1 - 6 alpha)

final numeric

Yes?

Assuming first character is irrelevant:

假设第一个字符无关紧要:

/.[A-Za-z]{1,6}\d/

#3

.\w{1,5}\d

any character followed by between 1 and 5 letters then 1 number

任何字符后跟1到5个字母,然后是1个数字

#4

-1

This should do the trick. Regular expression language is .Net implementation

这应该可以解决问题。正则表达式语言是.Net实现

^.[a-zA-Z]{1,5}\d$

Breakdown

^ force the match to start at the begining of the text

^强制匹配从文本的开头开始

. will match anything

。会匹配任何东西

[a-zA-Z]{1,5} will match any character a-z at least one time but no more than five. Because of the preceeding "." this means that the match will start at the second character

[a-zA-Z] {1,5}将匹配任何字符a-z至少一次但不超过五次。由于前面的“。”这意味着匹配将从第二个角色开始

\d matches a single digit

\ d匹配一个数字

$ matches the end of the text

$匹配文本的结尾

#1