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HAXM 安装/启动失败? - App Inventor 2 离线版 - 清泛IT社区,为创新赋能!
报错如下:
引用: emulator: Android emulator version 30.3.5.0 (build_id 7033400) (CL:N/A)
127.0.0.1 - - [01/Apr/2025 16:55:37] "GET /echeck/ HTTP/1.1" 200 39
handleCpuAcceleration: feature check for hvf
emulator: ERROR: x86_64 emulation currently requires hardware acceleration!
C...
串口Read不到数据的问题 - 用户反馈 - 清泛IT社区,为创新赋能!
用户发送的是 8n1 的格式,但是ai2的串口貌似不支持这种格式。写串口正常,读串口为空,len为0。
目前经过测试验证,应该是 \n 作为结束符的。发送时,也是。
ai2使用 physicaloid 库完成的串口功能。
App Inventor 2 蓝牙BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节...
... 搜索 App Inventor 2 蓝牙BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节硬编码问题
一、问题背景
二、核心发现:23字节硬编码限制
2.1 WriteStrings...
扒了一下源码,ESP8285接入App Inventor有4种玩法,第3种最香 - AI 助手 - ...
ESP8285这个芯片怎么接入App Inventor 2?我翻了MIT的源码和我们fun123的30多个扩展,把所有可行路径都摸了一遍。先说结论:不用开发新扩展,现有组件就能用。
ESP8285是什么?和ESP8266啥关系?
ESP8285是乐鑫(Espressif)出的WiFi芯片...
你敢相信,鸿蒙debug安装包体积比release包要小? - HarmonyOS NEXT - 清泛...
modules.abc 几乎没变大(1966 → 2064 KB,只 +100KB)。但 HAP 在磁盘上却从 762KB 涨到
2.32MB。差别不在代码量,在压缩方式。我用 unzip -v
看每个文件在包里是"压缩存"还是"原样存"。
● 完全确...
How to determine an object's class?
If class B and class C extend class A and I have an object of type B or C , how can I determine of which type it is an instance?
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Using sed to mass rename files
...ld say that the easiest way to do this is to use the
prename or rename commands.
On Ubuntu, OSX (Homebrew package rename, MacPorts package p5-file-rename), or other systems with perl rename (prename):
rename s/0000/000/ F0000*
or on systems with rename from util-linux-ng, such as RHEL:
rename 0...
Best way to specify whitespace in a String.Split operation
... to be the delimiters. White-space characters are defined by the Unicode standard and return true if they are passed to the Char.IsWhiteSpace method.
Always, always, always read the documentation!
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Print a file's last modified date in Bash
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You can use the
stat
command
stat -c %y "$entry"
More info
%y time of last modification, human-readable
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How to print an exception in Python?
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For Python 2.6 and later and Python 3.x:
except Exception as e: print(e)
For Python 2.5 and earlier, use:
except Exception,e: print str(e)
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