问题
How do I strip all punctuation from a string in vb.net? I really do not want to do stringname.Replace("$", "") for every single bit of punctuation, though it would work.
How do i do this quickly and efficiently?
Other than coding something that codes this for me....
回答1:
You can use a regular expression to match anything that you want to remove:
str = Regex.Replace(str, "[^A-Za-z]+", String.Empty);
[^...] is a negative set that matches any character that is not in the set. You can just put any character there that you want to keep.
回答2:
Quick example using a positive regex match. Simply place the characters you want removed in it:
Imports System.Text.RegularExpressions
Dim foo As String = "The, Quick brown fox. Jumped over the Lazy Dog!"
Console.WriteLine(Regex.Replace(foo,"[!,.\"'?]+", String.Empty))
回答3:
If you want a non-regex solution, you could try something like this:
Dim stringname As String = "^^^%%This,,,... is $$my** original(((( stri____ng."
Dim sb As New StringBuilder
Dim c As Char
For Each c In stringname
If Not (Char.IsSymbol(c) OrElse Char.IsPunctuation(c)) Then
sb.Append(c)
End If
Next
Console.WriteLine(sb.ToString)
Output is "This is my original string".
来源：https://stackoverflow.com/questions/1355215/strip-all-punctuation-from-a-string-in-vb-net