base.html
<html> <head>...</head> <body> ... {% block nav %} <ul id="nav"> <li>{% block nav-home %}<a href="{% url home %}">Home</a>{% endblock %}</li> <li>{% block nav-about %}<a href="{% url about %}">about</a>{% endblock %}</li> <li>{% block nav-contact %}<a href="{% url contact %}">Contact</a>{% endblock %}</li> </ul> {% endblock %} ... </body></html>about.html
{% extends "base.html" %}{% block nav-about %}<strong >about</strong>{% endblock %}欢迎分享，转载请注明来源：内存溢出
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