• tornado 模版


    tornado 模版语法

    取消转义 :

      取消项目转义 :autoescape = None

      取消模版转义:{% 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 #} <!--仅在此模版去除转义 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}}   &nbsp;&nbsp;   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}} &nbsp;
    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}} &nbsp;
    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}} &nbsp;
    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>
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  • 原文地址:https://www.cnblogs.com/zlsgh/p/8478600.html
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