操作数据库:
>>> import sqlite3# 如果文件不存在,会主动在当前目录创立:>>> conn = sqlite3.connect('test.db')>>> cursor = conn.cursor()>>> cursor.execute('create table user (id varchar(20) primary key, name varchar(20))')>>> cursor.execute(r'insert into user (id, name) values (\'1\', \'Michael\')')# 执行insert,update,delete语句时,通过rowcount取得影响的行数:>>> cursor.rowcount1>>> cursor.close()>>> conn.commit()>>> conn.close()
执行查问:
>>> conn = sqlite3.connect('test.db')>>> cursor = conn.cursor()>>> cursor.execute('select * from user where id=?', ('1',))>>> values = cursor.fetchall()# 后果集是一个list,每个元素都是一个tuple,对应一行记录>>> values[('1', 'Michael')]>>> cursor.close()>>> conn.close()