//sqlite數據庫驅動組件using System.Data.SQLite;//插入數據庫函數  int SQLquery(string sql)  {   try   {    //打開數據庫    SQLiteConnection conn = new SQLiteConnection();    SQLiteConnectionStringBuilder connstr = new SQLiteConnectionStringBuilder();    connstr.DataSource = "my.db";    conn.ConnectionString = connstr.ToString();    conn.Open();    //執行SQL語句    SQLiteCommand cmd = new SQLiteCommand();    cmd.CommandText = sql;    cmd.Connection = conn;    SQLiteDataReader reader=cmd.ExecuteReader();    int result=0;    while (reader.Read())    {     result=1;    }    //關閉所有連接    connstr.Clear();    conn.Close();    return result;   }   catch (Exception ex)   {        //   }   return 0;}