https://blog.csdn.net/liuweiyuxiang/article/details/71104613
def search(request):
searchtype = request.POST.get("searchtype")
keyword = request.POST.get("keyword")
if searchtype == "all":
#多个字段模糊查询， 括号中的下划线是双下划线，双下划线前是字段名，双下划线后可以是icontains或contains,区别是是否大小写敏感，竖线是或的意思
sciencenews = models.Sciencenews.objects.filter(Q(title__icontains=keyword)
|Q(content__icontains=keyword)|Q(author__icontains=keyword))
elif searchtype == "author":
#单个字段模糊查询
sciencenews = models.Sciencenews.objects.filter(author__icontains=keyword)
elif searchtype == "title":
sciencenews = models.Sciencenews.objects.filter(title__icontains=keyword)
elif searchtype == "content":
sciencenews = models.Sciencenews.objects.filter(content__icontains=keyword)
else:
#使用点连接的filter链表示and
sciencenews = models.Sciencenews.objects.filter(author__icontains=keyword).
filter(title__icontains=keyword).filter(content__icontains=keyword)
return render(request,"show/index.html",{"param":sciencenews,"searchtype":searchtype,"keyword":keyword})
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