private void button1_Click(object sender, EventArgs e)
{
var db = LevelDB.DB.Open(new LevelDB.Options() { CreateIfMissing=true},Environment.CurrentDirectory+@"\test.db");
for (int i = 0; i < 9999; i++) db.Put(System.Guid.NewGuid().ToString(), "test...................");
MessageBox.Show("success");
}