0
This question started as the question at this link代碼吹過HTML模板，並返回到Python直接
我認爲這個問題是在模板unexpected.html（下文進一步）。 python代碼工作正常，但是當用戶提供number然後單擊提交按鈕時，python代碼會接受該值，並且無論if子句的哪個分支被採用，瀏覽器中的結果視圖都是unexpected.html以及Python代碼底部的嵌入式html。
爲什麼瀏覽器不停止，只有unexpected.html模板？
首先下面是python代碼。
class MainPage(BaseHandler):
def get(self):
self.render_template('index.html', { })
def post(self):
number = self.request.get('number')
hiddennumber = self.request.get('hiddennumber')
for i in ["a"]:
if int(number) < int(hiddennumber):
reason='< was in that time slot already: '
trans = Trans(key_name='reason')
trans.reason=reason
trans.name=number
trans.put()
template_values = {'trans':trans}
path = os.path.join(TEMPLATE_DIR, 'unexpected.html')
self.response.out.write(template.render(path, template_values))
elif int(number) > int(hiddennumber):
reason='> was in that time slot already: '
trans = Trans(key_name='reason')
trans.reason=reason
trans.name=number
trans.put()
template_values = {'trans':trans}
path = os.path.join(TEMPLATE_DIR, 'unexpected.html')
self.response.out.write(template.render(path, template_values))
else:
pass
self.response.out.write('''
<html>
<body>
<form method="post">
<p>Name: <input type="text" name="name" /></p>
<p>Favorite foods:</p>
<select name="favorite_foods" multiple size="4">
<option value="apples">Apples</option>
<option value="bananas">Bananas</option>
<option value="carrots">Carrots</option>
<option value="durians">Durians</option>
</select>
<p>Birth year: <input type="text" name="birth_year" /></p>
<p><input type="submit" /></p>
</form>
</body>
</html>
''')
class Unexpected(BaseHandler):
def get(self):
trans=Trans.get_by_key_name('reason')
template_values = {'trans':trans}
path = os.path.join(TEMPLATE_DIR, 'unexpected.html')
self.response.out.write(template.render(path, template_values))
def post(self):
day=self.request.get('day')
return webapp2.redirect("/")
app = webapp2.WSGIApplication([
('/', MainPage),
('/unexpected', Unexpected)
],
debug=True)
接下來是模板unexpected.html。
{% extends "base.html" %}
{% block content %}
<form action="" method="post" >
<input type="hidden" name="day" value="{{ day }}"/>
This unexpected result occurred: <emph style="font-weight: bold">{{ trans.reason }}</emph>
<br /><br />
<div id="inputdata">
<label>Click the "Ok" button to go back to the previous page so you can edit your entry.
</label>
<input type="submit" value="submit" />
</div>
</form>
<button onclick="window.history.back()">Ok</button>
{% endblock content %}
最後，我包括index.html更大的完整性。
{% extends "base.html" %}
{% block content %}
<center>
</h1>
</center>
<form action="" method="post">
<input type="hidden" name="hiddennumber" value="10">
<label>Location/Venue name (no spaces and case counts)</label>
<input type="textbox" name="number" size="30" value=""></input><br/>
<input type="submit" value=submit />
</form>
{% endblock content %}