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【客户反馈】增加直接改项目名称的功能 - 用户反馈 - 清泛IT社区，为创新赋能！
...了，编译通过。 rename后再另存，就不行。
修复中。。。App Inventor 2 发表于 2024-08-30 09:29
rename 没有真正改名，编译仍然失败
另存为 是彻底改了，编译通过。 rename后再另存，就不行。
修复中。。 ...
改名功能...
MQTT支持获取设备端的在线状态吗？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
mqtt拓展支持获取设备端的在线状态吗？这里仅仅提供一个思路：
设备状态是设备的一项数据，这个也需要设备上报其状态数据给app端，类似网络的心跳包，定时上报状态数据，一定时间没取到数据就认为设备离线。
micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...错了。
运行故障
java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribeBluetoothLEint.java:357) at
edu.mit.appinventor.ble.BluetoothLEintSBLEReadOperation.run(BluetoothLEint.java:325) at android.os.Handler.handleCallback(Handler.java:1013) ...
Creating a singleton in Python
...), {})): pass
class Logger(Singleton):
pass
An ironic aspect of this approach is that it's using subclassing to implement a metaclass. One possible advantage is that, unlike with a pure metaclass, isinstance(inst, Singleton) will return True.
Corrections
On another topic, you've probably alrea...
Return HTTP status code 201 in flask
...sk import Response
> return Response("{'a':'b'}", status=201, mimetype='application/json')
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PCH File in Xcode 6
... buttons)
Project > Build Settings > Search: "Prefix Header".
Under "Apple LLVM 7.0" you will get the Prefix Header key.
Type file directory. e.g: "$(SRCROOT)/$(PROJECT_NAME)/ProjectName-Prefix.pch".
Clean project: ⌘cmd+⇧shift+K
Build project: ⌘cmd+B
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How exactly do Django content types work?
...en models. Blah blah, let's dive into some code and see what I mean.
# ourapp.models
from django.conf import settings
from django.db import models
# Assign the User model in case it has been "swapped"
User = settings.AUTH_USER_MODEL
# Create your models here
class Post(models.Model):
author = m...
Re-enabling window.alert in Chrome
...
For our application there are over 150 confirm windows that rely on the synchronous native confirms. We are planning on changing it, but that would result in us spending two weeks to go through each one of these cases. Plus testing,...
Setting Corner Radius on UIImageView not working
...e layer property of UIView to round the corners of multiple elements in my app. However, this one UIImageView is simply not complying. Not sure what I am missing.
...
How many bits or bytes are there in a character? [closed]
...
some legacy apps still use 1 byte chars with local codepages, but all NT versions of Windows internally run with 2-byte characters (UCS-2 up to NT4, UTF-16 from Windows 2000 onwards, stored as wchar_t), not only Asian ones, and so should...