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app inventor 2 怎么进行延迟操作？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...就是说等待的过程中其他界面操作均无法进行，不过好在CPU消耗并不高，也算是一种不错的实现方式。
如果要做成非阻塞方式，可以考虑计时器设置一个间隔，到计时点后停止计时器并调用你的逻辑来实现。
有个项目疑似引发了死锁 - 用户反馈 - 清泛IT社区，为创新赋能！
转移至：yyz123456。版本7打不开，导不出，引发cpu高，疑似死锁，protobuf递归
Blue7
反正就是很奇怪，需要调试一下。
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What is exactly the base pointer and stack pointer? To what do they point?
...is because the flow of the function call is:
Push parameters (hInstance, etc.)
Call function, which pushes return address
Push ebp
Allocate space for locals
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Are list-comprehensions and functional functions faster than “for loops”?
...ython function), the overhead of repeatedly setting up Python stack frames etc. eats up any savings. Simply doing the same work in-line, without function calls (e.g. a list comprehension instead of map or filter) is often slightly faster.
Suppose that in a game that I'm developing I need to draw...
Perl build, unit testing, code coverage: A complete working example
...ful.
Files=1, Tests=18, 0 wallclock secs ( 0.00 cusr + 0.00 csys = 0.00 CPU)
To run your unit tests with code coverage analysis, try this:
Build testcover
And you'll see something on the order of this:
t\HelloPerlBuildWorld....ok
All tests successful.
Files=1, Tests=18, 12 wallclock secs ( ...
Why does C++ need a separate header file?
...g the code between different units (different developers, teams, companies etc..)
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Which is faster: while(1) or while(2)?
...story is:
There exists a layer of translation between C++ source code and CPU instructions, and this layer has important implications for performance.
Therefore, performance cannot be evaluated by only looking at source code.
The compiler should be smart enough to optimize such trivial cases. Progr...
What are some uses of template template parameters?
...PU.
Both templates can work with all basic types, like float, double, int, etc
And I also have a class template (simplified):
template <template <class> class TT, class T> class CLayerT: public Layer<TT<T> >
{
TT<T> weights;
TT<T> inputs;
TT<int>...
Creating an object: with or without `new` [duplicate]
...ng to some specific implementation (say, a computer with an x86-compatible CPU) is needlessly restrictive and leads to a lack of rigour/provability within the scope of the rules defined by the C++ standard. The C++ standard gives rules about storage duration, not about some hypothetical data structu...
What's the difference between an inverted index and a plain old index?
...her RDBMS Consult MySQL the docs). Indexing can also be related to caching etc.
Inverted index creates file with structure that is primarily intender for (fulltext) searching.
Inverted index consists of two main files:
Vocabulary
Occurences
In vocabulary are common words extracted from text (...