Arrays 返回字符串中单词的索引
此代码:Arrays 返回字符串中单词的索引,arrays,vb.net,vbscript,Arrays,Vb.net,Vbscript,此代码: Module Module1 Sub Main() ' Our input string. Dim animals As String = "cat, dog, bird" ' See if dog is contained in the string. If Not animals.IndexOf("dog") = -1 Then Console.WriteLine(animals.IndexOf("dog")) En
Module Module1
Sub Main()
' Our input string.
Dim animals As String = "cat, dog, bird"
' See if dog is contained in the string.
If Not animals.IndexOf("dog") = -1 Then
Console.WriteLine(animals.IndexOf("dog"))
End If
End Sub
End Module
返回字符串中的起始位置5
但如何返回字符串的索引,以便:
for cat = 1
for dog = 2
for bird = 3
查看所需的输出,您似乎希望获得字符串中单词的索引。您可以通过将字符串拆分为数组,然后使用以下方法在数组中查找该项来完成此操作: 上面的代码返回2。对于猫,你会得到1,对于鸟,结果是3。如果数组中没有项,则输出为0
Dim animals = "cat, dog, bird"
' Split string to array
Dim animalsArray = animals.Split(New String() {",", " "}, StringSplitOptions.RemoveEmptyEntries)
' Item to find
Dim itemToFind = "dog"
' Find index in array
Dim index = Array.FindIndex(Of String)(animalsArray, Function(s) s = itemToFind)
' Add 1 to the output:
Console.WriteLine(index + 1)