table of Contents
A powerful web framework
django installation and startup
django installation:
- Enter cmd
pip3 install django==1.11.22(note that adding a version number, this version is relatively stable, the current latest version is 2.x, but the bug more) -----> Recommended - pycharm installation
django creation:
- Enter cmd
django-admin startproject 文件名(cmd create in your directory) - pycharm create -----> Recommended
- Note: Do not mess created after the change
django directory structure
- File name, for example day54
- Do not change the name after the chaos created
|-day54
|- day54
|- settings.py：配置文件
|- urls.py：路由映射关系
|- wsgi.py：socket服务端文件
|- manage.py：管理文件
|- templates：模版文件,比如html就是模版文件
|- status：存放一些静态文件(静态资源)
|- css
|- js
|- img- Note: django start, something that is to start folder name at the top of pycharm
django route description
# 在urls.py文件中
# 参数一定要写request
def index(request):
return HttpResponse('index')
# url中填写的是一个正则表达式
urlpatterns = [
# url(r'^admin/', admin.site.urls),
url(r'^index/', index),
]django template description
- Taken from the database data, transmitted on this page, called rendering, rendering the template, where the template is the html page.
- Rendering: The process server good things, rendered to the client, the web page
# 模版渲染函数
# python
def f1(request):
### 变量的渲染
name = 'zekai'
### 列表
li = ['zekai', 'lxxx', 'leijun']
### 字典
dict = {"name":'zekai', 'age':18, 'hobby':'bj'}
### 列表中套字典
myli = [
{'id': 1, 'name': 'zekai', 'age': 12},
{'id': 2, 'name': 'yuechun', 'age': 32},
{'id': 3, 'name': 'lifu', 'age': 23}
]
# 在settings中已经进行了路径配置，可以直接写templates中的html文件
return render(request, 'f1.html',
{"xxx":name, "li":li, 'dict':dict, 'myli':myli})
<!-- html -->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Title</title>
</head>
<body>
{# 变量渲染 #}
<h2>{{ xxx }}</h2>
{#列表的渲染#}
<ul>
<li>{{ li.0 }}</li>
<li>{{ li.1 }}</li>
<li>{{ li.2 }}</li>
</ul>
<hr>
{#列表的循环#}
<ul>
{% for items in li %}
<li>{{ items }}</li>
{% endfor %}
</ul>
{#字典的渲染#}
<h3>{{ dict.age }}</h3>
{#字典的循环#}
<ul>
{% for items in dict.values %}
<li>{{ items }}</li>
{% endfor %}
</ul>
<ul>
{% for items in dict.keys %}
<li>{{ items }}</li>
{% endfor %}
</ul>
<ul>
{% for key, val in dict.items %}
<li>{{ key }} --- {{ val }}</li>
{% endfor %}
</ul>
{#列表中套字典格式#}
<table border="1px">
<thead>
<tr>
<th>id</th>
<th>name</th>
<th>age</th>
</tr>
</thead>
<tbody>
{% for items in myli %}
<tr>
<td>{{ items.id }}</td>
<td>{{ items.name }}</td>
<td>{{ items.age }}</td>
<td><a href="/f2/">删除</a></td>
</tr>
{% endfor %}
</tbody>
</table>
</body>
</html>Create a django project, you need to do several operations
# 到settings.py中， 配置：
# 1. 最后
STATIC_URL = '/static/'
STATICFILES_DIRS = (
os.path.join(BASE_DIR, 'static'),
)
# 逗号不能少，只能是STATICFILES_DIRS，不能修改
# static目录需要创建
# 2. MIDDLEWARE中
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
#'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
#3. TEMPLATES中
'DIRS': [os.path.join(BASE_DIR, 'templates')]
To be learned
As well as learn about the FTP protocol SMTP.
What is Apache
Re going to review the url
hexo + gitee build a blog
What route, what is the interface
django the function is not serial, url parameters, the default will pass a request, parentheses may be used to control parameters. Brackets content is content parameters, a few brackets, several parameters.