擅长:python、mysql、java
<p>在Django Girls教程的<a href="http://tutorial.djangogirls.org/en/django_models/README.html#creating-a-blog-post-model" rel="nofollow">Chapter 9</a>中,有一些为您的<code>Post</code>模型创建<a href="https://docs.djangoproject.com/en/1.8/ref/models/instances/#str" rel="nofollow">^{<cd1>}</a>方法的说明,如下所示:</p>
<pre><code>class Post(models.Model):
author = models.ForeignKey('auth.User')
title = models.CharField(max_length=200)
text = models.TextField()
created_date = models.DateTimeField(
default=timezone.now)
published_date = models.DateTimeField(
blank=True, null=True)
def publish(self):
self.published_date = timezone.now()
self.save()
def __str__(self):
return self.title
</code></pre>
<p>如果您仍然无法使其工作,请更新您的问题并包含<code>Post</code>类。缩进(空格数)可能出错。在</p>