如何高效编写SQLite操作类代码？

import sqlite3class 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()