vb.net - 在某些单词 vb.net 之后或之前剥离字符串

Question

我想剪一个字符串，取某个单词之前的内容和某个单词之后的内容。

例子:

Dim string As String = "Dr. John Smith 123 Main Street 12345"
Dim cut_at As String = "Smith"
Dim string_before, string_after As String

--cutting code here--

string_before = "Dr. John "
string_after = " 123 Main Street 12345"

我将如何在 vb.net 中做到这一点？

Answer 1

您可以使用 split() 函数或此

    Dim mystr As String = "Dr. John Smith 123 Main Street 12345"
    Dim cut_at As String = "Smith"
    Dim x As Integer = InStr(mystr, cut_at)

    Dim string_before As String = mystr.Substring(0, x - 2)
    Dim string_after As String = mystr.Substring(x + cut_at.Length-1)