tornado 模版语法
取消转义 :
取消项目转义 :autoescape = None
取消全局转义:{% autoescape None %}
取消行转义 :{% raw bd %}
强制转义(行) :{{escape(bd)}}
循环语句 :if while for
静态文件 :static
lesson4.py
1 # -*- coding:utf-8 -*-
2
3 import tornado.web
4 import tornado.httpserver
5 import tornado.options
6 import tornado.ioloop
7 import time
8
9 from tornado.options import define,options
10
11 define(‘port‘, default=8080, help=‘run port‘, type=int)
12 define(‘version‘, default=‘0.0.1‘, help=‘version 0.0.1‘, type=str)
13
14 class MainHandler(tornado.web.RequestHandler):
15
16 def get(self, *args, **kwargs):
17 self.render(‘template.html‘)
18
19 def post(self, *args, **kwargs):
20 user = self.get_argument(‘user‘,‘none‘)
21 psd = self.get_argument(‘password‘,‘none‘)
22 bd = ‘<a href="https://www.baidu.com" target="_blank">百度</a>‘
23 self.render(‘template02.html‘,
24 user = user,
25 psd = psd,
26 time = time,
27 bd = bd,
28 )
29
30
31 class NotFoundHandler(tornado.web.RequestHandler):
32
33 def get(self, *args, **kwargs):
34 self.send_error(404)
35
36 def write_error(self, status_code, **kwargs):
37 self.render(‘error.html‘)
38
39
40 application = tornado.web.Application(
41 handlers = [
42 (r"/",MainHandler),
43 (r"/post",MainHandler),
44 (r"/(.*)", NotFoundHandler),
45 ],
46 template_path = ‘template‘,
47 static_path=‘static‘,
48 # autoescape = None, # 整个项目不转义 尽量不要用
49 debug = True
50 )
51
52
53 if __name__ == ‘__main__‘:
54 print(options.port)
55 print(options.version)
56 tornado.options.parse_command_line()
57 http_server = tornado.httpserver.HTTPServer(application)
58 http_server.listen(options.port)
59 tornado.ioloop.IOLoop.instance().start()
template.html
1 <!DOCTYPE html>
2 <html lang="en">
3 <head>
4 <meta charset="UTF-8">
5 <title>template_lesson4</title>
6 <style>
7 div{
8 margin: 30px
9 }
10 </style>
11 </head>
12 <body>
13 <div>
14 hello world !
15 <form method="post" action="/post" target="_blank">
16
17 <p>用户名<br><input type="text" name="user"></p>
18
19 <p>密码<br><input type="password" name="password"></p>
20
21 <input type="submit">
22
23 </form>
24 </div>
25 </body>
26 </html>
template2.html ----> 本文重点
1 <!DOCTYPE html>
2 {# autoescape None #} <!--仅在此模块去除转义 尽量不要用-->
3 <html lang="en">
4 <head>
5 <meta charset="UTF-8">
6 <title>template02_lesson4</title>
7 <style>
8 div{
9 margin: 30px
10 }
11 a{
12 text-decoration:none;
13 }
14 </style>
15 </head>
16 <body>
17 <div>
18 登录成功 ! <br>
19 用户名:{{user}} 密码:{{psd}} <br>
20
21 {% for i in range(1,9) %} <!--百分号表示执行python语句-->
22 {% set i = i*3 + 1 %}
23 i = {{i}}
24 {% end %} <!--这里必须有 end -->
25 <br>
26
27 {% set a = 1 %}
28 {% while a < 5 %}
29 {% set a += a*2 %}
30 a = {{a}}
31 {% end %} <!--这里必须有 end -->
32 <br>
33
34 {% set b = 1 %}
35 {% if b < 5 %}
36 {% set b += 1 %}
37 b = {{b}}
38 {% end %} <!--这里必须有 end -->
39 <br>
40
41 时间戳1 :{{ time.time() }}
42 <br>
43
44 时间戳2 :{# time.time() #} <!--井号表示注释掉了不执行 不显示-->
45 <br>
46 时间戳3 :{{! time.time() }} <!--感叹号表示不转义 感叹号前面无空格-->
47 <br>
48 百度链接1: <a href="https://www.baidu.com" target="_blank">百度</a> <br>
49
50 百度链接2: {{bd}} <br> <!--花括号里的链接不会被Html解析-->
51
52 百度链接3: {% raw bd %} <br> <!--raw 此行取消转义, html 会解析-->
53
54 百度链接4: {{escape(bd)}} <br> <!--escape 此行强制转义, 不会被Html解析-->
55 </div>
56 <div>
57 {% set i = 0 %}
58 {% if i < 1 %}
59 <img src="static/imgs/01.jpg" width="300px" height="200px"> <!--静态文件的两种添加方式-->
60 <img src="{{ static_url(‘imgs/02.jpg‘) }}" width="300px" height="200px"> <!--静态文件的两种添加方式-->
61 {% end %}
62 <br>
63 </div>
64
65 </body>
66 </html>