externalmodulefunction1.vb

来自「大名鼎鼎的mono是.NET平台的跨平台（支持linux」· VB 代码 · 共 10 行

Imports Microsoft.VisualBasic.Strings

Class ExternalModuleFunction1
    Shared Function Main() As Integer
        Dim str As String = "abc"
        Dim i As Integer
        i = instr(str, "a") - 1
        Return i
    End Function
End Class