为什么定义的previous_index和next_index是灰色的？？
运行失败啊
闲吃小栗子
2019-07-25
2 回答
def get_detail_page(request, article_id):
all_article = Article.objects.all()
curr_article = None
previous_article = None
next_article = None
for index, article in enumerate(all_article):
if index == 0:
previous_index = 0
next_index = index + 1
elif index == len(all_article) - 1:
previous_index = index - 1
next_index = index
else:
previous_index = index - 1
next_index = index + 1
previous_article = all_article[previous_index]
next_article = all_article[next_index]
if article.article_id == article_id:
curr_article = article
break
section_list = curr_article.content.split('\n')
return render(request, 'blog/detail.html', {
'curr_article': curr_article,
'section_list': section_list,
'previous_article': previous_article,
'next_article': next_article
})我是这样的
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