在html的form中使用给url定义的name值，可以在修改url时不用在修改form的src。

 

urls.py

from django.conf.urls import url
from mytest import views

urlpatterns = [
    # url(r'^admin/', admin.site.urls),
    url(r'^index/', views.index, name='mysite'),
views.Index.as_view()),
]

views.py

from django.http import HttpResponse
from django.shortcuts import render


def index(req):
    if req.method == 'POST':
        print('method is :' + req.method)
    elif req.method == 'GET':
        print('method is :' + req.method)
    return render(req, 'index.html')

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>index</title>
</head>
<body>
    <form action="{% url 'mysite' %}" method="post">
        <input type="text" name="A" />
        <input type="submit" name="b" value="提交" />
    </form>
</body>
</html>

由上述代码可以看到url的name使用方法。