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Sub downloadfile(ByVal path As String)
Dim client As New Net.WebClient
AddHandler client.DownloadDataCompleted, AddressOf downloadfilecomplite
client.DownloadFileAsync(New Uri(path), "FullFileName")
End Sub
Sub downloadfilecomplite(ByVal sender As Object, ByVal e As Net.DownloadDataCompletedEventArgs)
'文件下完了,继续后面的
downloadfile("nextFilePathToDown")
End Sub