Python语言学习 （五）1.1

创建连接：connect

创建游标：cursor

执行sql：excute，excutemany

关闭连接：close

参数化sql：%s

例子：

#encoding=utf-8

from mysql import connector

#创建连接params = dict(host = ‘localhost‘, port = 3306, user = ‘root‘, password = ‘123456‘, database = ‘test‘)conn = connector.connect(**params)

#创建游标cursor = conn.cursor()

#执行sql语句# ddl = """#     create table users(id INTEGER , name VARCHAR(40), address VARCHAR(100))# """

#cursor.execute(ddl)#先到数据库中将id改为自增长,主键.

sqltext = """    insert into users(name,address) VALUES (‘tina‘,‘beijing‘)"""cursor.execute(sqltext)

#如果不加下面这句代码,表中则无法添加内容,会显示空.conn.commit()

sqltext = """    select * from users"""

cursor.execute(sqltext)

for row in cursor:    print row

#%s代表参数sqltemplate = """    insert into users(name,address) values (%s, %s)"""ul = (‘demo‘, ‘shanghai‘)

cursor.execute(sqltemplate, ul)conn.commit()

us = [    (‘tina1‘, ‘abc‘),    (‘tina2‘, ‘abc‘),    (‘tina3‘, ‘abc‘),    (‘tina4‘, ‘abc‘),    (‘tina5‘, ‘abc‘),    (‘tina6‘, ‘abc‘)]

#executemany可以批量执行语句cursor.executemany(sqltemplate, us)conn.commit()

#关闭连接conn.close()