大约有 10,000 项符合查询结果(耗时:0.0116秒) [XML]

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BLE connection error “Connection status was set to OS code 133” - 创...

...更大的 MTU 大小确实解决了问题。 但是,如果错误代码可以明确指出这是问题所在,那就真的很有用了。这可以节省我一天的工作时间。 此外,我的应用程序的 iPhone 版本从未遇到过这个问题,因为 iOS 似乎会自动协商更大...
https://bbs.tsingfun.com/thread-2619-1-1.html 

Appinventor 音效调用播放后没有声音? - App应用开发 - 清泛IT社区,为创新赋能!

...果因为音频文件损坏等原因,也可能无法正常播放,这时可以先去资源区,点击隐私文件,菜单中选择预览,可以预览播放,事先检查好确保音频文件没有问题。
https://bbs.tsingfun.com/thread-2667-1-1.html 

如何实现程序后台运行 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

编制的程序软件,在手机中运行时,程序放在后台或者手机锁屏,计时软件程序就会停止计时,再次切换到前端才可以继续运行,有没有方法能够使程序软件可以在后台锁屏的情况下持续运行。
https://bbs.tsingfun.com/thread-2912-1-1.html 

ImagePicker 图像选择器如何一次选择多张图片? - App Inventor 2 中文网 -...

...ference/components/media.html#ImagePicker 根据文档最新版本,是可以选多张图片的,但是实际测试下来,一次只能选一张,可能跟安卓版本及手机有关,可能有的手机可以选择多张,纯猜测未验证。英文社区也有相关问题,目前没有得...
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How can I apply a function to every row/column of a matrix in MATLAB?

... I would test performance of this approach for any particular case against simple for-loop, which might be faster then converting a matrix to cell array. Use tic/tac wrap to test. – yuk Feb 21 '10 at 23:13 ...
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Getting current device language in iOS?

... header information from NSLocale.h: + (NSArray *)preferredLanguages NS_AVAILABLE(10_5, 2_0); // note that this list does not indicate what language the app is actually running in; the [NSBundle mainBundle] object determines that at launch and knows that information People interested in app langu...
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App Inventor 2 数学积木的9个隐藏用法:随机种子、位运算、取整陷阱,踩中...

...时,随机数每次不一样反而不好调试。random set seed to 块可以固定随机数序列——只要种子相同,后续所有随机数的结果完全一致。 实际用法:在 Screen.Initialize 里设一次种子,整个 App 的随机行为就可复现了。机器学习预处理...
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Pacman: how do the eyes find their way back to the monster hole?

I found a lot of references to the AI of the ghosts in Pacman, but none of them mentioned how the eyes find their way back to the central ghost hole after a ghost is eaten by Pacman. ...
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Get difference between 2 dates in JavaScript? [duplicate]

...ur 25 hour day in the calculated span. It would be helpful to consult a detailed treatment of UTC (Universal Coordinated Time) and "civil" time standards before devising a calculation such as this. A day is not a always 86,400 seconds, not even in UTC. However, ECMA standards state that it will not ...
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奇葩职位为何频现互联网? - 资讯 - 清泛网 - 专注C/C++及内核技术

...发生在大企业身上,此前大中小企业资本运作都很活跃。可以说,在线旅游给创业者的机会越来越少了。 ◎在投入和盈利上,途牛网是花2块赚1块;去哪儿是花1.1块赚1块;同程虽然没有上市,但可以负责任地说,是花1块赚1块...