VB编译误差，预期标识符

Question

以下是脚本从网站下载zip文件的代码，但我会收到一个汇编错误，该错误指示"预期标识符"。

Public Class DownloadAddrFile
    Public Function DownloadFile(ByVal Addr As String, ByVal SaveAddrFile As String) As Boolean
        Try 
            Dim WC As New System.Net.WebClient()
            WC.DownloadFile(Addr, SaveAddrFile)
            Return True
        Catch ex As Exception
            MessageBox.Show(ex.Message)
            Return False
        End Try
    End Function
End Class
Call DownloadFile("http://data.gdeltproject.org/events/index.html/20171002.export.CSV.zip", "C:UsersmwhitingDocumentsZip_filesdata.zip")

关于如何完成这项工作的任何帮助将是很棒的！

Answer 1

您无法在名称空间内调用方法。

创建一个类DownloadAddrFile的实例，例如在按钮单击中调用方法DownloadFile。（通常不需要Call-键字）

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim d As New DownloadAddrFile
    d.DownloadFile("http://data.gdeltproject.org/events/index.html/20171002.export.CSV.zip", "C:UsersmwhitingDocumentsZip_filesdata.zip")
End Sub