本文主要介绍的是在python语法入门中导入import与from时的相关代码的示例,如果你对python语法入门导入import与from的相关实际应用的相关内容的具体介绍,以下就是文章的主要内容 。
- import cgi
- import datetime
- import wsgiref.handlers
- from google.appengine.ext import db
- from google.appengine.api import users
- from google.appengine.ext import webapp
创建一个模块,相当于一个数据表,也相当于一个类
- class Greeting(db.Model):
- author = db.UserProperty()
- content = db.StringProperty(multiline=True)
- date = db.DateTimeProperty(auto_now_add=True)
MainPage也是类吧,参数似乎是继承的意思
- class MainPage(webapp.RequestHandler):
- def get(self):
- self.response.out.write('')
- greetings = db.GqlQuery("SELECT * "
- "FROM Greeting "
- "ORDER BY date DESC LIMIT 10")
- for greeting in greetings:
- if greeting.author:
- self.response.out.write('%s wrote:' % greeting.author.nickname())
- else:
- self.response.out.write
- self.response.out.write('
- %s
- ' %
- cgi.escape(greeting.content))
编码self.response.out.write("""
- class MainPage(webapp.RequestHandler):
- def get(self):
- self.response.out.write('')
- greetings = db.GqlQuery("SELECT * "
- "FROM Greeting "
- "ORDER BY date DESC LIMIT 10")
- for greeting in greetings:
- if greeting.author:
- self.response.out.write('%s wrote:' % greeting.
author.nickname())- else:
- self.response.out.write
- self.response.out.write('
- %s
- ' %
- cgi.escape(greeting.content))
双引号里使用双引号的方法action设定为url
- """)
- #
- class Guestbook(webapp.RequestHandler):
- def post(self):
- greeting = Greeting()
以上内容就是对python语法入门的部分介绍。
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