Google app engine k、 py”，如果greeting.author:^IndentationError:unindent与任何外部缩进级别都不匹配mmm…现在我在get self.response.out.write（greeting.date.strftime（'post_Google App Engine

Google app engine k、 py”，如果greeting.author:^IndentationError:unindent与任何外部缩进级别都不匹配mmm…现在我在get self.response.out.write（greeting.date.strftime（'post

google-app-engine

Google app engine k、 py”，如果greeting.author:^IndentationError:unindent与任何外部缩进级别都不匹配mmm…现在我在get self.response.out.write（greeting.date.strftime（'post,google-app-engine,Google App Engine,k、 py”，如果greeting.author:^IndentationError:unindent与任何外部缩进级别都不匹配mmm…现在我在get self.response.out.write（greeting.date.strftime（'posted:%d，%h%Y'）中得到文件“C:\Program Files\Google\u appengine\demos\gb\guestbook.py”，第36行）ValueError:StringWeell格式无效谢谢你的回答，但我是个十足的

k、 py”，如果greeting.author:^IndentationError:unindent与任何外部缩进级别都不匹配mmm…现在我在get self.response.out.write（greeting.date.strftime（'posted:%d，%h%Y
'）中得到文件“C:\Program Files\Google\u appengine\demos\gb\guestbook.py”，第36行）ValueError:StringWeell格式无效谢谢你的回答，但我是个十足的新手：（每次我添加这样的内容，我都会得到文件“C:\Program Files\Google\Google\u appengine\demos\guestbook\guestbook.py“，如果是greeting.author:^IndentationError:Unident与任何外部缩进级别都不匹配mmm…现在我在get-self.response.out.write（greeting.date.strftime（'posted:%d，%h%Y
'）中获得文件“C:\Program Files\Google\u appengine\demos\gb\guestbook.py”，第36行）值错误：格式字符串无效

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

class Greeting(db.Model):
  author = db.UserProperty()
  content = db.StringProperty(multiline=True)
  date = db.DateTimeProperty(auto_now_add=True)


class MainPage(webapp.RequestHandler):
    def get(self):
        self.response.out.write('<html><body>')

        greetings = db.GqlQuery("SELECT * FROM Greeting ORDER BY date DESC LIMIT 10")
        for greeting in greetings:

            if greeting.author:
                self.response.out.write('<b>%s</b> wrote:' % greeting.author.nickname())

            else:
                self.response.out.write('An anonymous person wrote:')
            self.response.out.write('<blockquote>%s</blockquote>' %
                                    cgi.escape(greeting.content))



        # Write the submission form and the footer of the page
        self.response.out.write("""
              <form action="/sign" method="post">
                <div><textarea name="content" rows="3" cols="60"></textarea></div>
                <div><input type="submit" value="Sign Guestbook"></div>
              </form>
            </body>
          </html>""")

class Guestbook(webapp.RequestHandler):
  def post(self):
    greeting = Greeting()

    if users.get_current_user():
      greeting.author = users.get_current_user()

    greeting.content = self.request.get('content')
    greeting.put()
    self.redirect('/')


application = webapp.WSGIApplication([
  ('/', MainPage),
  ('/sign', Guestbook)
], debug=True)


def main():
  wsgiref.handlers.CGIHandler().run(application)


if __name__ == '__main__':
  main()

for greeting in greetings:
 self.response.out.write(greeting.date.strftime('<b>posted:%Y-%m-%d %H:%M:%S</b><br>'))

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

class Greeting(db.Model):
  author = db.UserProperty()
  content = db.StringProperty(multiline=True)
  date = db.DateTimeProperty(auto_now_add=True)


class MainPage(webapp.RequestHandler):
    def get(self):
        self.response.out.write('<html><body>')
        greetings = db.GqlQuery("SELECT * FROM Greeting ORDER BY date DESC LIMIT 10")
        for greeting in greetings:
            self.response.out.write(greeting.date.strftime('<b>posted: %Y-%m-%d %H:%M:%S</b><br>'))         
            if greeting.author:
                self.response.out.write('<b>%s</b> wrote:' % greeting.author.nickname())
            else:
                self.response.out.write('An anonymous person wrote:')
            self.response.out.write('<blockquote>%s</blockquote>' %
                                    cgi.escape(greeting.content))
        # Write the submission form and the footer of the page
        self.response.out.write("""
              <form action="/sign" method="post">
                <div><textarea name="content" rows="3" cols="60"></textarea></div>
                <div><input type="submit" value="Sign Guestbook"></div>
              </form>
            </body>
          </html>""")

class Guestbook(webapp.RequestHandler):
  def post(self):
    greeting = Greeting()
    if users.get_current_user():
      greeting.author = users.get_current_user()
    greeting.content = self.request.get('content')
    greeting.put()
    self.redirect('/')


application = webapp.WSGIApplication([
  ('/', MainPage),
  ('/sign', Guestbook)
], debug=True)


def main():
  wsgiref.handlers.CGIHandler().run(application)


if __name__ == '__main__':
  main()

greetings = Greeting.all().order('date')
for greeting in greetings.fetch(10):
  self.response.out.write(greeting.date.strftime('<b>posted: %d, %b %Y </b><br>'))