在html页面中，加入运算符表达式，进行逻辑判断。可参考手册。我用的Django是2.1版本
view.py中的代码：
1 from django.shortcuts import render 2 from django.http import HttpResponse 3 # Create your views here. 4 user_list = [ 5 {'name': 'xiao wang', 'age': '18'}, 6 {'name': 'hua hua', 'age': '20'} 7 ] 8 user = {'name': 'hua hua', 'age': '20', 'sex': 'male'} 9 class Person(object): 10 def __init__(self, name, age, sex): 11 self.name = name 12 self.age = age 13 self.sex = sex 14 15 def say(self): 16 return 'I am ' + self.name 17 user1 = Person('Tom', 23, 'male') 18 book_list = ['python', 'java', 'php'] 19 20 def say(request): 21 return render(request, 'index.html', {'title': 'my page', 'user': user, 'book_list': book_list})
index.html中的代码
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>{{ title }}</title> 6 </head> 7 <body> 8 <h1>hello {{ user.name }}</h1> 9 <li>age:{{ user.age }}</li> 10 <li>sex:{{ user.sex }}</li> 11 <div>the {{ user.name }} sya: {{ user.say }}</div> 12 {{ book_list.0 }} 13 ################### 14 {% if user %} 15 <li>name: {{ user.name }}</li> 16 {% else %} 17 用户不存在 18 {% endif %} 19 20 {% for foo in book_list %} 21 <li> {{ foo }}</li> 22 {% endfor %} 23 24 {% for k, v in user.items %} 25 <li> {{ forloop.counter }}.{{ k }}: {{ v }}</li> 26 {% endfor %} 27 28 </body> 29 </html>
结果显示
