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PHP优化杂烩 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...集型时才是正确的,而对于一般的 Web 请求而言,多半是 IO 密集型的,此时这个结论就值得商榷了,因为数据库查询等 IO 的存在,必然会导致 CPU 有相当一部分时间处于 WAIT 状态,也就是被浪费的状态。此时如果进程数多于 CPU ...
https://bbs.tsingfun.com/thread-1435-1-1.html 

苹果手机可以安装AI伴侣进行测试吗? - App Inventor 2 中文网 - 清泛IT社...

...那么及时,也就是新增的功能需要一段时间后才能更新到iOS版中。其次,使用了拓展的App一律不支持iOS版AI伴侣的测试,因为拓展目前都是java/kotlin 写的安卓平台程序,可能未来待iOS平台成熟后,会有swift苹果版拓展。
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App Inventor 2 源码商店

... 蓝牙BLE硬件接入及IO控制 ...
https://bbs.tsingfun.com/thread-1510-1-1.html 

MAC地址可以连上,硬件通信时提示无效的UUID? - 创客硬件开发 - 清泛IT社...

...常。 这个 APP程序 使用透传UUID 还可以控制蓝牙模块的IO 口么?这个 APP程序 使用透传UUID 还可以控制蓝牙模块的IO 口么?透传uuid和io控制的uuid是不一样的,具体清参考:https://bbs.tsingfun.com/thread-1501-1-1.html
https://bbs.tsingfun.com/thread-1517-1-1.html 

BLE 蓝牙模块 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

BLE 蓝牙模块(使用模块自带 IO 口控制, )IO口 uuid 现在连接方式是,选择框里发现蓝牙名字,在选中 点击连接按钮 连接, IO口方式 uuid 有没有在初始化里面自动连接的方法?初始化中自动连接某个ble设备的推荐方式是:...
https://bbs.tsingfun.com/thread-2985-1-1.html 

App Inventor 2 鸿蒙先行版:AppInventor 从此支持全平台,不再安卓专属 - ...

... 包,安装到鸿蒙真机上运行。AI伴侣初版——类似安卓和iOS的Companion,鸿蒙版AI伴侣的初版已经完成。这意味着你可以实时调试,而不是每次都要重新编译安装。组件基本可用——所有组件基本可以在鸿蒙上工作,但是细节有待...
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What does “Splats” mean in the CoffeeScript tutorial?

... Similar to the C# params keyword. – ThatMatthew Sep 27 '12 at 19:17 ...
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How to delete a folder with files using Java

... Solution: wrap this chunk of code in if (!index.delete()) {...}. Then, if index is a symbolic link, it's deleted regardless of whether it appears it has contents. – Hank Schultz Nov 11 '15 ...
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Can't launch my app in Instruments: At least one target failed to launch

...eme for your target and under "Profile [App Name]" set the Build Configuration to Debug (it's usually Release by default). share | improve this answer | follow ...
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How do I auto size a UIScrollView to fit its content

...for (UIView *view in self.scrollView.subviews) { contentRect = CGRectUnion(contentRect, view.frame); } self.scrollView.contentSize = contentRect.size; Swift let contentRect: CGRect = scrollView.subviews.reduce(into: .zero) { rect, view in rect = rect.union(view.frame) } scrollView.con...