vb.net - 用逗号分割字符串并打印结果

Question

我正在使用以下代码拆分字符串并检索它们：

Private Sub Button1_Click(sender As Object, e As EventArgs) 
      Handles Button1.Click
    Dim s As String = "a,bc,def,ghij,klmno"
    Dim parts As String() = s.Split(New Char() {","c})
    Dim part As String

    For Each part In parts
        MsgBox(part(0))
    Next

End Sub

但消息框仅显示每个 splitted 中的第一个字符string (a,b,d,g,k)。

我只想显示第一个单词，我做错了什么？

Answer 1

您的问题尚不清楚，但是如果您只想要字符串数组中的第一个单词，则无需遍历它

 Dim firstWord = parts(0)
 Console.WriteLine(firstWord) ' Should print `a` from your text sample

 ' or simply
 Console.WriteLine(parts(0)) 

 ' and the second word is     
 Console.WriteLine(parts(1))  ' prints `bc`

Answer 2

您已经拥有每个部分 - 只需显示它：

For Each part In parts
  MsgBox(part)
Next

part(0)将返回字符集合中作为字符串的第一项。

如果您想要返回的字符串数组中的特定索引（如您的评论所建议的那样），只需直接访问它：

Dim parts As String() = s.Split(New Char() {","c})
Dim firstPart As String = parts(0)
Dim thirdPart As String = parts(2)

Answer 3

你需要显示part不part(0)

For Each part In parts

     MsgBox(part)
    Next