Django基础，Day9 - 静态文件目录与路径设置说明(eg. images, JavaScript, CSS)
静态文件路径设置官方说明
1. Make sure that django.contrib.staticfiles is included in your INSTALLED_APPS.
2. In your settings file, define STATIC_URL, for example:
STATIC_URL = '/static/'
3. Store your static files in a folder called static in your app. For example my_app/static/my_app/myimage.jpg.
4. In your templates, either hardcode the url like /static/my_app/myexample.jpg or, preferably, use the static template tag to build the URL for the given relative path by using the configured STATICFILES_STORAGE storage (this makes it much easier when you want to switch to a content delivery network (CDN) for serving static files).
{% load staticfiles %}
<img src="{% static "my_app/myexample.jpg" %}" alt="My image"/>
使用实例
在前面的例子中，我们使用了上面第三种设置方式，在app目录下，创建了static目录，里面还创建了名字跟app名称一样的目录，里面才放静态资源文件，路径如：
polls/static/polls/style.css,在template中引入时使用
{% load static %}
<link rel="stylesheet" type="text/css" href="{% static 'polls/style.css' %}" />
一、Django 项目默认读取静态文件目录如 /projectName/appName/static/
二、如果我们不想将静态文件放到app甚至project目录下时，可以在settings.py 中设置 STATICFILES_DIRS ，如：
STATICFILES_DIRS = (
'D://static/',
# os.path.join(BASE_DIR, "static"),
# '/var/www/static/',
)
接着前面的例子，此时创建 D://static/polls/style.css
li a {
color: red;
}
body {
background: white url("images/background.jpg") no-repeat center Top;
}
刷新页面 则可发现，链接中的文字颜色由原先的绿色变成了红色，说明页面引用的css路径生效
