django css

1. settings.py最下方STATIC_URL下面补上
STATIC_URL = '/home/wjg/code/wblog/static/'

STATIC_ROOT = os.path.join(os.path.dirname(__file__),'../static').replace('\','/')
STATICFILES_DIRS = (
    ('css',os.path.join(STATIC_ROOT,'css').replace('\','/') ),  
    ('js',os.path.join(STATIC_ROOT,'js').replace('\','/') ),
    ('images',os.path.join(STATIC_ROOT,'images').replace('\','/') ),
)

3.html引用办法
<link rel="stylesheet" type="text/css" href="/static/css/bootstrap/css/bootstrap.css">