Question

我有一个跟随字符串：

K9908098,G2342DF34324/234234323~234-234-234;R38724234+3D9083324T234Y 23E4234323

如何仅捕获带字母和数字的子字符串，例如VBA中的K9908098和3D9083324T234Y？此模式[A-Z\d]+匹配所有子字符串，此([A-Z]+\d+)+不会抓取3D9083324T234Y。

Answer 1

您可以使用

\b(?=\d*[A-Z])(?=[A-Z]*\d)[A-Z\d]+\b

请参阅regex demo。

<强>详情

\b - 字边界
(?=\d*[A-Z]) - （正向前瞻性要求）0+位后必须有一个大写的ASCII字母
(?=[A-Z]*\d) - 在0+大写ASCII字母后必须有一个ASCII数字
[A-Z\d]+ - 1+大写ASCII字母或数字
\b - 一个单词边界。

参见VBA演示：

Dim regex As Object, allMatches As Object, match As Object
Dim s As String

s = "K9908098,G2342DF34324/234234323~234-234-234;R38724234+3D9083324T234Y 23E4234323"

Set regex = CreateObject("vbscript.regexp")
With regex
    .Global = True
    .MultiLine = False
    .Pattern = "\b(?=\d*[A-Z])(?=[A-Z]*\d)[A-Z\d]+\b"
End With

Set allMatches = regex.Execute(s)
For Each match In allMatches
    Debug.Print match.Value
Next

输出：

K9908098
G2342DF34324
R38724234
3D9083324T234Y
23E4234323

正则表达式VBA：匹配特定的子字符串

1 个答案: