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。
