Question

使用传递的参数时，我总是报告一个错误，但是如果更改此

{％网址

，此错误将消失。请帮助我解决问题。

views.py 是：

def mmmm(request):
    return render(request, 'test3.html')

def gettime(request, year, day, month):
    return HttpResponse("time is %s-%s-%s" % (year, month, day))

urls.py 是：

app_name = "four"
urlpatterns = [
    re_path(r'mmmm', views.mmmm, name='mmmm'),
    re_path(r'gettime/(?P<year>\d+)/(?P<month>\d+)/(?P<day>\d+)/$', views.gettime, name='gettime'),
]

test2.html是：

<a href="{% url 'mmmm' %}">mmmmm</a><br>
<a href="{% url 'gettime' year=2019 month=12 day=18 %}">cmdb/userinfo/tom/tomnickname/10</a><br>

此错误是：

Error during template rendering
In template /Users/jumporange/PycharmProjects/HelloDjango/templates/test2.html, error at line 15

'set' object is not reversible
5   <title>Get student</title>
6   </head>
7   <body>
8   <ul>{% for student in students %}
9       <li>{{ student.s_name }}</li>
10  {% endfor %}
11  </ul>
12  {#<a href="/FOUR/index">mmm</a>#}
13  
14  {#<a href="{% url 'mmmm' %}">mmmmm</a><br>#}
15  <a href="{% url 'gettime' year=2019 month=12 day=18 %}">cmdb/userinfo/tom/tomnickname/10</a><br>
16  </body>
17  </html>

Django的“设置”对象是不可逆的

0 个答案: