import redis

try:

    r=redis.StrictRedis(host='localhost',port=6379)

except Exception,e:

    print e.message

//方式一：根据数据类型的不同，调用相应的方法，完成读写

r.set('name','hello')

r.get('name')

//方式二：pipline

//缓冲多条命令，然后一次性执行，减少服务器-客户端之间TCP数据库包，从而提高效率

pipe = r.pipeline()

pipe.set('name', 'world')

pipe.get('name')

pipe.execute()

import redis

class RedisHelper():

    def __init__(self,host='localhost',port=6379):

        self.__redis = redis.StrictRedis(host, port)

    def get(self,key):

        if self.__redis.exists(key):

            return self.__redis.get(key)

        else:

            return ""

    def set(self,key,value):

        self.__redis.set(key,value)

#encoding=utf-8

from t2 import RedisHelper

from t3 import MysqlHelper

import hashlib

name=raw_input("请输入用户名：")

pwd=raw_input("请输入密码：")

sha1=hashlib.sha1()

sha1.update(pwd)

pwd1=sha1.hexdigest()

try:

    redis=RedisHelper()

    if redis.get('uname')==name:

        print 'ok'

    else:

        mysql=MysqlHelper('localhost',3306,'test1','root','mysql')

        upwd=mysql.get_one('select upwd from userinfos where uname=%s',[name])

        if upwd==None:

            print '用户名错误'

        elif upwd[0]==pwd1:

            redis.set('uname', name)

            print '登录成功'

        else:

            print "密码错误"

except Exception,e:

    print e.message