private void button42_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "二维码文件 |*.jpg;*.png";
ofd.ValidateNames = true;
ofd.CheckPathExists = true;
ofd.CheckFileExists = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
string FileName = ofd.FileName;
var res = weChatThread.Wx_QRCodeDecode(FileName);
txt_syslog.Text = res.ConvertToString();
}
}