day57
当我们在浏览器输入一个地址,回车的时候发生了什么
DNS:记录着域名以及IP的对应关系
1socket
2路由(列表套元组), 根据uri的不同返回不同的页面结果.
3html和mysql结合,
动态就是替换html里面的内容
urls.py
from django.conf.urls import url
from django.contrib import admin
#from django.shortcuts import render
from django.shortcuts import HttpResponse,render
def index(request):
return render(request, "index.html",{'username':'ycl',
'mylist':[1,2,"one"],
"mydict":{'name':'ycl','age':18},
"userinfo":[
{'name':'qwe','age':18},
{'name': 'zxc','age':19},
{'name': 'asd', 'age': 20},
{'name': 'plm', 'age': 21},
]
}
)
def login(request):
# get请求
if request.method == 'GET':
return render(request, "login.html")
##接收数据的时候是post请求
else:
username=request.POST.get('username')
pwd=request.POST.get('pwd')
#连数据库的方式查询
if username == 'ycl' and pwd == '123':
return HttpResponse('OK')
else:
return render(request, "login.html")
urlpatterns = [
# url(r'^admin/', admin.site.urls),
url(r'^index/', index),
url(r'^login/',login),
]
login.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/login/" method="post">
用户名 : <input type="text" name="username">
密码 : <input type="password" name="pwd">
<input type="submit" value="登陆">
</form>
</body>
</html>
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="/static/css/a.css">
</head>
<body>
<h1>my name is 007</h1>
<h2>{{ username }}</h2>
{{ mylist.0 }}
{#<ul>#}
{# 列表循环 #}
{# {% for item in mylist %}#}
{# <li>#}
{##}
{# {{ item }}#}
{##}
{# </li>#}
{# {% endfor %}#}
{#</ul>#}
{#字典循环#}
<hr>
{#<ul>#}
{# {% for key,val in mydict.items %}#}
{# <li>#}
{# {{ key }} : {{ val }}#}
{# </li>#}
{# {% endfor %}#}
{#</ul>#}
{#列表套字典变成表单#}
{#<table border="1px">#}
{# <thead>#}
{# <tr>#}
{# <th>name</th>#}
{# <th>age</th>#}
{# </tr>#}
{# </thead>#}
{# <tbody>#}
{# {% for user in userinfo %}#}
{# <tr>#}
{# <td>{{ user.name }}</td>#}
{# <td>{{ user.age }}</td>#}
{# </tr>#}
{# {% endfor %}#}
{# </tbody>#}
{#</table>#}
</body>
</html>
