python--mysql的CURD操作

Posted 2022-03-21 f-rt

from pymysql import *


def main():
    # 创建Connextion连接
    conn = connect(host=‘localhost‘, port=3306, user=‘root‘, password=‘‘, database=‘test‘, charset=‘utf8‘)
    # 获取Cursor对象
    cursor = conn.cursor()
    insert_sql = "insert into users values(0, ‘王五‘,‘女‘, 18)"
    update_sql = "update users set sex = ‘男‘ where username= ‘王五‘"
    delete_sql = "delete from users where username=‘王五‘"
    cursor.execute(insert_sql)
    # cursor.execute(update_sql)
    # cursor.execute(delete_sql)
    # 如果没有提交，数据库的id也会自动增长，只是数据不存在
    conn.commit()
    # 回滚操作 conn.rollback()




if __name__ == ‘__main__‘:
    main()