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BLE 蓝牙APP 接收不到来自蓝牙模块的讯息 - App应用开发 - 清泛IT社区，为创新赋能！
...。每当收到更改时，将触发 BytesReceived 事件。
你这个问题比较泛，需要具体问题具体分析，如果App还是收不到数据，建议使用UART线调试一下，看硬件数据是否成功发送。
如需更具体的问题解决服务，请右侧扫码联系在线客...
当VC问你打算怎么招贤纳士的时候 你该这么答 - 资讯 - 清泛网 - 专注C/C++及内核技术
...视觉设计师或第一个社区支持团队，那这基本上没什么大问题。但如果你的执行计划中需要非常专业的经验、人脉关系或认证技术，我就要花更多时间理解你的需求。这是因为，我们能否成功找到这样一个人才关系到公司业务的...
What is the “volatile” keyword used for?
...with "preventing caching". It is about reordering, by the compiler, OR the CPU hardware through speculative execution.
– doug65536
Oct 7 '16 at 2:52
...
What is the difference between an interface and abstract class?
...return this.fuel;
}
}
Implementing an interface consumes very little CPU, because it's not a class, just a bunch of names, and therefore there isn't any expensive look-up to do. It's great when it matters, such as in embedded devices.
Abstract classes
Abstract classes, unlike interfaces, a...
How can I use functional programming in the real world? [closed]
...not contain any magic pixie dust that will pass functions off to different CPU's or machines. What F#/Haskell and other functional programming languages do is make it easier for you to write functions that can be processed independent of the thread or CPU they were created on.
I don't feel right po...
What and where are the stack and heap?
...ack
The stack often works in close tandem with a special register on the CPU named the stack pointer. Initially the stack pointer points to the top of the stack (the highest address on the stack).
The CPU has special instructions for pushing values onto the stack and popping them back from the sta...
Why must wait() always be in synchronized block
...the x-level cache (a.k.a. 1st/2nd/3rd-level caches) of the thread handling CPU core.
But synchronized blocks are only one side of the medal: If you actually access an object within a synchronized context from a non-synchronized context, the object still won't be synchronized even within a synchroni...
What's the difference between deadlock and livelock?
...your implementation is not careful, you can fall on livelock, spending all CPU on the lock mechanism.
Also see:
https://preshing.com/20120226/roll-your-own-lightweight-mutex/
Is my spin lock implementation correct and optimal?
Summary:
Deadlock: situation where nobody progress, doing nothing...
Static linking vs dynamic linking
... is usually negligible. Inside the DLL there is some more overhead on i386 CPU's, because they can't generate position independent code. On amd64, jumps can be relative to the program counter, so this is a huge improvement.
2) This is correct. With optimizations guided by profiling you can usually ...
程序员用数据思维教你如何追女生 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...也不清楚对方到底喜欢什么。我们程序员也会遇到这样的问题，但是我们有办法。
程序员的需求分析技能是谈恋爱的必杀技。给你一个手机号码，你可以知道她的QQ，微信，微博，然后进行“大数据分析”，朋友圈里面喜欢发...