python08_05day

#!/usr/bin/python
# -*- coding: UTF-8 -*-
from _ast import Param

#查询数据库
'''
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')

cur = conn.cursor()

reCount = cur.execute('select * from userinfo')
data = cur.fetchall()
cur.close()
conn.close()

print reCount
print data
'''

#插入数据
'''
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')

cur = conn.cursor()

sql = "insert into userinfo (name ,address) values(%s,%s)"
params = ('wang','use')

reCount = cur.execute(sql, params)
conn.commit()

#data = cur.fetchall()
cur.close()
conn.close()
print reCount

'''

#删除数据
'''
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')

cur = conn.cursor()

sql = "delete from userinfo where id = %s"
params = ('8')

reCount = cur.execute(sql, params)
conn.commit() #需要提交，语句才能生效

#data = cur.fetchall()
cur.close()
conn.close()
print reCount

'''

#更新数据
'''
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')

cur = conn.cursor()

sql = "update userinfo set name = %s where id =4"
params = ('www')

reCount = cur.execute(sql, params)
conn.commit() #需要提交，语句才能生效

#data = cur.fetchall()
cur.close()
conn.close()
print reCount

'''
#批量插入数据
'''
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')

cur = conn.cursor()

li = [
('alax','feifie'),
('wangba','dagou'),
('wangba','dagou'),
('wangba','dagou'),
('wangba','dagou'),
('wangba','dagou'),
('wangba','dagou'),
('wangba','dagou'),
('wangba','dagou'),
]

reCount = cur.executemany('insert into userinfo(name,address ) values(%s,%s )',li)
conn.commit() #需要提交，语句才能生效

#data = cur.fetchall()
cur.close()
conn.close()
print reCount
'''

#把ID 义字典的形式读取出来
'''
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')

cur = conn.cursor(cursorclass = MySQLdb.cursors.DictCursor)

reCount = cur.execute('select * from userinfo')
data = cur.fetchall()

cur.close()
conn.close()
print reCount
print data

'''
'''
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')
cur = conn.cursor()
#cur = conn.cursor(cursorclass = MySQLdb.cursors.DictCursor)

reCount = cur.execute('select * from userinfo')
#data = cur.fetchall()
data = cur.fetchone()
print data
#cur.scroll(0,mode='absolute')
data = cur.fetchone()
print data
cur.scroll(-1,mode='relative')

data = cur.fetchone()
#cur.scroll(0,mode='absolute')
cur.close()
conn.close()
#print reCount
print data

'''

import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root', passwd='1234', db='08day05')

cur = conn.cursor()

sql = "insert into userinfo (name ,address) values(%s,%s)"
params = ('wang','use')

reCount = cur.execute(sql, params)
conn.commit()

#data = cur.fetchall()
cur.close()
conn.close()
print reCount