知识点整理:
内容整理
1. 创建Django工程
django-admin startproject 工程名
2. 创建APP
cd 工程名
python manage.py startapp cmdb
3、静态文件
project.settings.py
STATICFILES_DIRS = (
os.path.join(BASE_DIR, "static"),
)
4、模板路径
DIRS ==> [os.path.join(BASE_DIR,'templates'),]
5、settings中
middlerware
# 注释 csrf
6、定义路由规则
url.py
"login" --> 函数名
7、定义视图函数
app下views.py
def func(request):
# request.method GET / POST
# http://127.0.0.1:8009/home?nid=123&name=alex
# request.GET.get('',None) # 获取请求发来的而数据
# request.POST.get('',None)
# return HttpResponse("字符串")
# return render(request, "HTML模板的路径")
# return redirect('/只能填URL')
8、模板渲染
特殊的模板语言
-- {{ 变量名 }}
def func(request):
return render(request, "index.html", {'current_user': "alex"})
index.html
<html>
..
<body>
<div>{{current_user}}</div>
</body>
</html>
====> 最后生成的字符串
<html>
..
<body>
<div>alex</div>
</body>
</html>
-- For循环
def func(request):
return render(request, "index.html", {'current_user': "alex", 'user_list': ['alex','eric']})
index.html
<html>
..
<body>
<div>{{current_user}}</div>
<ul>
{% for row in user_list %}
{% if row == "alex" %}
<li>{{ row }}</li>
{% endif %}
{% endfor %}
</ul>
</body>
</html>
#####索引#################
def func(request):
return render(request, "index.html", {
'current_user': "alex",
'user_list': ['alex','eric'],
'user_dict': {'k1': 'v1', 'k2': 'v2'}})
index.html
<html>
..
<body>
<div>{{current_user}}</div>
<a> {{ user_list.1 }} </a>
<a> {{ user_dict.k1 }} </a>
<a> {{ user_dict.k2 }} </a>
</body>
</html>
###### 条件
def func(request):
return render(request, "index.html", {
'current_user': "alex",
"age": 18,
'user_list': ['alex','eric'],
'user_dict': {'k1': 'v1', 'k2': 'v2'}})
index.html
<html>
..
<body>
<div>{{current_user}}</div>
<a> {{ user_list.1 }} </a>
<a> {{ user_dict.k1 }} </a>
<a> {{ user_dict.k2 }} </a>
{% if age %}
<a>有年龄</a>
{% if age > 16 %}
<a>老男人</a>
{% else %}
<a>小鲜肉</a>
{% endif %}
{% else %}
<a>无年龄</a>
{% endif %}
</body>
</html>
XXOO管理：
MySQL
SQLAlchemy
主机管理（8列）：
IP
端口
业务线
...
用户表：
用户名
密码
功能：
1、 登录
2、主机管理页面
- 查看所有的主机信息（4列）
- 增加主机信息（8列） ** 模态对话框
3、查看详细
url:
"detail" -> detail
def detail(reqeust):
nid = request.GET.get("nid")
v = select * from tb where id = nid
...
4、删除
del_host -> delete_host
def delete_host(request):
nid = request.POST.get('nid')
delete from tb where id = nid
return redirect('/home')
模态对话框
修改 home.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body style="margin: 0">
<div style="height: 48px;background-color: #dddddd"></div>
<div>
<form action="/home" method="post">
<input type="text" name="username" placeholder="用户名">
<input type="text" name="email" placeholder="邮箱">
<input type="text" name="gender" placeholder="性别">
<input type="submit" value="添加">
</form>
</div>
<div>
<table>
<!--django支持 for 循环,与Python不一样,这是模板语言for循环 有开头就有结尾 endfor-->
{% for row in user_list %}
<tr>
<td>{{ row.username }}</td>
<td>{{ row.gender }}</td>
<td>{{ row.email }}</td>
<td>
<a href="/detail?nid={{ row.id }}">查看详细</a>
<a class="del" href="#" row-id="{{ row.id }}">删除</a>
</td>
</tr>
{% endfor %}
</table>
</div>
<!--绑定事件-->
$('.del').click(function(){
var row_id = $(this).attr('row-id');
$('#nid').val(row_id);
})
<div>
<form action="/del_host" method="post">
<input style="display: none" id="nid" type="text" name="nid">
<p>
<input type="submit">
<input type="botton">
</p>
</form>
</div>
</body>
</html>
image.png
- 效果图:
![27. Remove Element(列表)题目代码[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)