如何在Django中循环X次？

Question

我的网站上有用户评论.每条评论的评分都是1-5星.我想打印那么多明星.我该怎么做？我只看到{% for X in Y %}哪个让你迭代一个列表,但不是一定次数.

Answer 1

使用模板范围过滤器由zalun:

from django.template import Library

register = Library()

@register.filter
def get_range( value ):
  """
    Filter - returns a list containing range made from given value
    Usage (in template):

    <ul>{% for i in 3|get_range %}
      <li>{{ i }}. Do something</li>
    {% endfor %}</ul>

    Results with the HTML:
    <ul>
      <li>0. Do something</li>
      <li>1. Do something</li>
      <li>2. Do something</li>
    </ul>

    Instead of 3 one may use the variable set in the views
  """
  return range( value )

Answer 2

无需自定义过滤器 -make_list即可完成工作：

{% for i in '123'|make_list %}