相关疑难解决方法(0)

我有一个简单的新闻和类别模型:

class Category(models.Model):
    name = models.CharField()
    slug = models.SlugField()

class News(models.Model):
    category = models.ManyToManyField(Category)
    title = models.CharField()
    slug = models.SlugField()
    text = models.TextField()
    date = models.DateTimeField()

我想计算每个类别的新闻并将其显示在网站上,如下所示:

Sport (5)
School (4)
Films (6)
Computer (2)
etc...

我怎样才能做到这一点？？

谢谢!