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fangzq

fangzq

V2EX member #180130, joined on 2016-07-03 09:23:20 +08:00
fangzq's recent replies
Feb 1, 2018
Replied to a topic by woshichuanqilz Flask flask css 文件的加载的问题
在开发测试时,可以对 flask 做以下配置:

```
TEMPLATES_AUTO_RELOAD = True
SEND_FILE_MAX_AGE_DEFAULT = 0
```
这样每当你的 模板文件或静态文件改变时,就能即时在浏览器里看到更改后的效果
Jan 30, 2018
Replied to a topic by Mrzhang0320 Python 萌新请教一个 Python socket 问题
@Mrzhang0320 ,我之前整理过关于 socket 的笔记,感兴趣的话可以看看,希望对你有帮助。https://github.com/fangzqq/Learning-Notes/blob/master/network_programming/%E7%90%86%E8%A7%A3%20socket_v2.md#tcp-server-and-client
Jan 30, 2018
Replied to a topic by Mrzhang0320 Python 萌新请教一个 Python socket 问题
老铁,你服务器的地址是 HOST = '' , PORT = 8888。而客户端连接的地址是 ip_port= ('192.168.1.95', 3600) 。如果是在同一台机器上,你服务器和客户端的 ip/port 都不一样,你确定能通信吗?
Jan 10, 2018
Replied to a topic by bingod Python 2018 年,你选择 Flask 还是 Django?
@dick20cm ,有大佬说 sanic 代码耦合度很高,而 flask 耦合就比较低,可以轻松的做各种定制,sanic 是牵一发而需要动很多代码
说一下我的理解。python 文档里说,实例对象调用描述符的过程是这样的:调用 b.x 时,实际是转化为 type(b).__dict__['x'].__get__(b, type(b))执行的。如果 x 是实例属性的话,那肯定在类的 __dict__ 里找不到了,也就无法自动进行调用了。
解决了就好,不客气
可以试试这个:

```python
from sqlalchemy import func
db.session.query(func.count(Post.id), Category.categoryName).select_from(Category).\
join(Post, Category.id == Post.category_id).group_by(Post.category_id).all()
```
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