/// <summary> 
                 /// 创建SQLite数据库文件 
                 /// </summary> 
                 /// <param name="dbPath">要创建的SQLite数据库文件路径</param> 
                 public static void CreateDB(string dbPath) 
                 { 
                         using (SQLiteConnection connection = new SQLiteConnection("Data Source=" + dbPath)) 
                         { 
                                 connection.Open(); 
                                 using (SQLiteCommand command = new SQLiteCommand(connection)) 
                                 { 
                                         command.CommandText = "CREATE TABLE Demo(id integer NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE)"; 
                                         command.ExecuteNonQuery(); 
                                         command.CommandText = "DROP TABLE Demo"; 
                                         command.ExecuteNonQuery(); 
                                 } 
                         } 
                 }