cookies

针对每一个服务器浏览器都会保存一个key-value结构的类似于{}
obj=HttpResponse("OK")
obj=render("")
obj=redirect("")
# 设置cookie
obj.set_cookie("key","value",max_age="")
# 获取cookie
request.COOKIES.get()
# obj.delete_cookie("cookie_key",path="/",domain=name)

session

# 设置session  
request.session["username"]="user"            
# 取出session
request.session.get("username")
# 删除session
del request.session["username"]
# request.session.flush()
      
使用django自带的用户表 auth_user
    插入记录的命令:python manage.py  createsuperuser
    
    1 auth.authenticate(username=user,password=pwd)
    
    2 auth.login(request,user_obj) 
        request.session["user_id"]=user.pk
        request.user:全局变量,模板,视图直接可以使用
    
    3 auth.logout(request)
    
    4 User.objects.create_user(username=user,password=pwd)
    
    5   # user=User.objects.get(username=request.user.username)
        # user.set_password("666")
        # user.save()