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文本导出excel，或者导出excel方式，研究一下。 - 微思想区 - 清泛IT论坛，...
...munity.kodular.io/t/p ... xcel-pdf-csv/172431列表转CSV，文件管理器存储COM，开源库Java：https://blog.51cto.com/AmbitionGarden/7062348Java生成Excel的几种方式
Apache POI：Apache POI是一个流行的用于处理Microsoft Office文档的Java库。它提供了一组API，可以...
MQTT 之保留消息（Retained Messages） - 创客硬件开发 - 清泛IT社区，为创新赋能！
...消息为“保留消息”；Broker对保留消息的处理 Broker会存储每个Topic的最后一条保留消息及其Qos，当订阅该Topic的客户端上线后，Broker需要将该消息投递给它。A retained message is a normal MQTT message with the retained flag set to true. The broke...
新闻传播中如何让沉默的数据说话 - 资讯 - 清泛网 - 专注C/C++及内核技术
...记忆池，成为永远忘却了的经历。但是，如果在现代数据存储和检索技术的支持下，新闻媒体能够对这些边角料性质的新闻素材进行管理，那么，在大时间跨度的视野中，一些看似没有价值的素材可能会因为与特定的人、事、物...
How do I migrate a model out of one django app and into a new one?
... that one of these models should be in a separate app. I do have south installed for migrations, but I don't think this is something it can handle automatically. How can I migrate one of the models out of the old app into a new one?
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Where should signal handlers live in a django project?
...
I actually like to make them classmethods of the model itself. That keeps everything within one class, and means you don't have to worry about importing anything.
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How to do relative imports in Python?
... the module were a top level module, regardless of where the module is actually located on the file system.
In Python 2.6, they're adding the ability to reference modules relative to the main module. PEP 366 describes the change.
Update: According to Nick Coghlan, the recommended alternative is ...
Flask-SQLAlchemy import/context issue
...:
# fields here
pass
And then in your application setup you can call init_app:
# apps.application.py
from flask import Flask
from apps.members.models import db
app = Flask(__name__)
# later on
db.init_app(app)
This way you can avoid cyclical imports.
This pattern does not necessitate ...
Max size of an iOS application
...whose MinimumOSVersion is less than 7.0: maximum of 80 MB for the total of all __TEXT sections in the binary.
For apps whose MinimumOSVersion is 7.x through 8.x: maximum of 60 MB per slice for the __TEXT section of each architecture slice in the binary.
For apps whose MinimumOSVersion is 9.0 or grea...
Static files in Flask - robot.txt, sitemap.xml (mod_wsgi)
... achieved.)
it's not clean to add static files into the app root folder
finally, the proposed solution looks much cleaner than the adding middleware approach:
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How do I use HTML as the view engine in Express?
...will work, but to serve out HTML, there is no need to use a view engine at all, unless you want to set up funky routing. Instead, just use the static middleware:
app.use(express.static(__dirname + '/public'));
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