python + mysql 實現表刪除數據

實例如下：

import pymysql

def Delete_From():
    #打開數據庫鏈接
    db = pymysql.connect("localhost","root","123456","test")

    # 使用cursor()方法獲取操作游標
    cursor = db.cursor()

    # SQL語句更新數據
    sql = """DELETE FROM student WHERE ID = %s"""%(3)

    try:
        # 執行SQL語句
        cursor.execute(sql)
        # 提交到數據庫執行
        db.commit()
        print("刪除數據成功")

    except Exception as e:
        print("刪除數據失敗：case%s"%e)
        #發生錯誤時回滾
        db.rollback()

    finally:
        # 關閉游標連接
        cursor.close()
        # 關閉數據庫連接
        db.close()

def main():
    Delete_From()

if __name__ == '__main__':
    main()