# 只获取title列表，只有value
Article.objects.all().values_list('title', flat=True)

# 快速decoding encoding
str(data,encoding='utf-8')
bytes(data,encoding='utf-8')

# http响应
from django.shortcuts import HttpResponse
return HttpResponse("ok")

# 模板响应
from django.shortcuts import render
return render(request, "index.html", {'name':"haha"})    

# 跳转
from django.shortcuts import redirect
return redirect('/index.html')
return redirect('https://www.baidu.com')

# 终止符
url(r'^host$', views.edit)

# 伪静态 添加.html SEO认为是静态页面 确定性高
url(r'^host/(\d+).html$', views.edit)

# 具体url 避免user?k1=a&k2=b SEO认为是具体页面 确定性高
url(r'^host/(\w+)/(\w+)/(\d+).html$', views.edit)

# 默认路由 最后兜底匹配所有反解析 url
url(r'^', views.func404)

# 反解析 url
from django.urls import reverse
url(r'^/add-user/(\d+)$', view.addUser, name=n1)
reverse('n1', kwargs={'a1':111})

# CBV
from django.views import View
class Login(View):
    def dispatch(self, request, *args, **kwargs):
        print('before')
        ret = super(Login, self).dispatch(request, *args, **kwargs)
        print('after')
        return ret

    def get(self, request, *args, **kwargs):
        return HttpResponse("ok")

# token name
var token = $.cookie('csrftoken')
headers: {'X-CSRFToken': token}

# 查看orm sql
v = UserInfo.objects.all()
print(v.query)

# 批量操作 一次最大不要超过999
bulk_create(objs,batch_size=None)