选择了图片后 第一次点打开 会直接把图片打开 对话框还没关闭 再点一次对话框才关闭 这是为什么呢  OpenFileDialog1.Filter = "所有文件|*.*"
        OpenFileDialog1.RestoreDirectory = True
        OpenFileDialog1.FilterIndex = 1
        OpenFileDialog1.ShowDialog()
        Process.Start(OpenFileDialog1.FileName)  ‘这句话是干啥的 网上找的 不清楚 什么作用        If OpenFileDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then            Dim fullname As String
            fullname = OpenFileDialog1.FileName
            PictureBox1.Image = Image.FromFile(fullname)        End If