如何高效编写SQLite操作类代码？

 import sqlite3 class SQLiteDatabase:     def __init__(self, db_name):         self.conn = sqlite3.connect(db_name)         self.cursor = self.conn.cursor()     def create_table(self, table_name, columns):         column_definitions = ', '.join([f"{col_name} {col_type}" for col_name, col_type in columns.items()])         sql = f"CREATE TABLE IF NOT EXISTS {table_name} ({column_definitions});"         self.cursor.execute(sql)         self.conn.commit()     def insert_data(self, table_name, data):         keys = ', '.join(data.keys())         values = ', '.join(['?' for _ in data.values()])         sql = f"INSERT INTO {table_name} ({keys}) VALUES ({values});"         self.cursor.execute(sql, tuple(data.values()))         self.conn.commit()     def update_data(self, table_name, set_columns, where_conditions):         set_clause = ', '.join([f"{col} = ?" for col in set_columns.keys()])         where_clause = ' AND '.join([f"{col} = ?" for col in where_conditions.keys()])         sql = f"UPDATE {table_name} SET {set_clause} WHERE {where_clause};"         self.cursor.execute(sql, tuple(set_columns.values()) + tuple(where_conditions.values()))         self.conn.commit()     def delete_data(self, table_name, conditions):         condition_clause = ' AND '.join([f"{col} = ?" for col in conditions.keys()])         sql = f"DELETE FROM {table_name} WHERE {condition_clause};"         self.cursor.execute(sql, tuple(conditions.values()))         self.conn.commit()     def query_data(self, table_name, columns='*', conditions=None):         if conditions:             condition_clause = ' AND '.join([f"{col} = ?" for col in conditions.keys()])             sql = f"SELECT {columns} FROM {table_name} WHERE {condition_clause};"             self.cursor.execute(sql, tuple(conditions.values()))         else:             sql = f"SELECT {columns} FROM {table_name};"             self.cursor.execute(sql)         return self.cursor.fetchall()     def close(self):         self.conn.close() Example usage: if __name__ == "__main__":     db = SQLiteDatabase("test.db")     db.create_table("users", {"id": "INTEGER PRIMARY KEY", "name": "TEXT", "age": "INTEGER"})     db.insert_data("users", {"id": 1, "name": "Alice", "age": 25})     db.insert_data("users", {"id": 2, "name": "Bob", "age": 30})     db.update_data("users", {"age": 26}, {"id": 1})     result = db.query_data("users", "name, age", {"id": 1})     print(result)  # [('Alice', 26)]     db.delete_data("users", {"id": 2})     all_users = db.query_data("users")     print(all_users)  # [(1, 'Alice', 26)]     db.close()