private void btn_WriteStringToBDB_Click(object sender, RoutedEventArgs e)
{
string guid = this.tbox_Key.Text;
string url = this.tbox_Value.Text;
DatabaseEntry key = new DatabaseEntry();
key.Data = Encoding.ASCII.GetBytes(guid);
DatabaseEntry value = new DatabaseEntry();
value.Data = Encoding.ASCII.GetBytes(url);
bdb.Put(key, value);
EMessageBox.Show("写入成功");
}