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- App应用开发 - 清泛IT社区，为创新赋能！
硬件子板块第一篇帖子：https://bbs.tsingfun.com/thread-2104-1-1.html
【解决】模拟器启动失败：ERROR: x86_64 emulation currently requires har...
...ation status: Hill is not installed on this machine
解决方法：
安装硬件加速器，路径：
....\resources\app.asar.unpacked\Emulator\from-Android-SDK\extras\intel\Hardware_Accelerated_Execution_Manager
在线版下载后的目录是：Emulator\from-Android-SDK\extras\intel\Hardware_A...
HAXM 安装/启动失败？ - App Inventor 2 离线版 - 清泛IT社区，为创新赋能！
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你的 Android 模拟器报错是因为 x86_64 版本的模拟器需要硬件加速，而当前系统未正确配置 HAXM（Intel® Hardware Accelerated Execution Manager）。具体原因可能是：HAXM 未安装或未启用
你可以尝试手动安装 HAXM：
打开 Android Studio → SDK M...
SQL JOIN - WHERE clause vs. ON clause
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@JamesHutchison It's tough to make reliable performance generalizations based on observed behaviors like this. What was true one day tends to be wrong the next, because this is an implementation detail rather than documented behavior. Database teams are always look...
How to iterate through a DataTable
I need to iterate through a DataTable . I have an column there named ImagePath .
4 Answers
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...这种聚集模式在发布/订阅模式里用来前传订阅的。通过控制订阅请求的绝对数量使得发布者不会超负荷运行，请求会聚集到中间节点，并且只有增量的那部分才进一步发送给上游（这个算法的详细讨论请参考这儿）。 再次提醒...
分享几个App Inventor 2“隐藏”的非常的实用的小技巧 - App Inventor 2 中...
...//www.bilibili.com/video/BV1Xj41147cn/
4、代码块导出图像，以及还原：https://www.fun123.cn/reference/other/download-pngs.html
5、iOS界面外观
6、过程参数，鼠标悬停时，可直接拖动获取和设置的代码块；参数可变：https://www.fun123.cn/refer...
How to use android emulator for testing bluetooth application?
...er settings of the virtual machine, Goto serialports -> Port 1 check Enable serial port select a port number
then select port mode as disconnected click ok. now, start virtual
machine. Under Devices -> USB Devices -> you can find your laptop
bluetooth listed. You can simply check t...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...ul response and serve it to
subsequent clients even when clients may be able to make a successful
request.
I'll leave it to you to decide between 4xx and 5xx, but you should use an error status code.
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Android Studio/Intellij Idea: “Table of Contents” for a class
...I have seen. One thing that has been annoying me though is this lack of "Table of Contents" for a class. I apologize for not knowing exactly what to call it. But what I am referring to is the dropdown menu in eclipse that lists all the methods, interfaces, classes and so on that are in that class fi...