大约有 36,000 项符合查询结果（耗时：0.0298秒） [XML]
Discuz X 首页白板解决之道 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...在合适位置打印特定内容然后exit(0);查看结果，分析出现问题的 1、开启Debug，及url后面跟 &debug=yes，也是网上最多的方法，但可能往往没有效果。
2、排除法，代码一段段的排查，在合适位置打印特定内容然后exit(0);查看结果，...
提问 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...sp;使用下面程序时，为什么每次都会把实际数字设为0？
问题出在你的判断逻辑上：
这里和你拼接的字符串比较，非常容易出错，比如多了或少了一个空格等。实际编程中判断最好使用数字，也就是你选择了难度等级是第几...
最大装载数不显示计算数值 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...数输出+（高数输出×横数输出）÷2＝最大装载数
出现问题不显示计算数字代码块没有问题，经过测试是能够正确计算出除法结果的，测试时主要被除数要大于除数，否则计算结果0.xxx 向下取整就是0，干扰测试结果。。。之后...
App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
...
HC05 简单介绍
基本接入代码参考
乱码问题排查思路
参与讨论
« 返回首页 Iot 专题
经典蓝牙硬件有很多款，但是hc05尤为常见，这里以hc05为例，介绍一下经典蓝牙模块如何接入AppInventor。
HC05 简...
What is the advantage of GCC's __builtin_expect in if else statements?
...ase precedes the foo case (as opposed to the C code). This can utilise the CPU pipeline better, since a jump thrashes the already fetched instructions.
Before the jump is executed, the instructions below it (the bar case) are pushed to the pipeline. Since the foo case is unlikely, jumping too is un...
clang: how to list supported target architectures?
...the architectures listed, llc -march=ARCH -mattr=help will list "available CPUs" and "available features". The CPUs are generally just a convenient way of setting a default collection of features.
But now for the bad news. There is no convenient table of triples in Clang or LLVM that can be dumped...
Select random lines from a file
...0 --file lines_78000000000.txt > /dev/null 0.02s user 0.01s system 80% cpu 0.047 total
The reason it is so fast, well I don't read the whole file and just move the file pointer 10 times and print the line after the pointer.
Gitlab Repo
Old attempt
First I needed a file of 78.000.000.000 lines:...
小端模式 和 大端模式的决定因素 - C/C++ - 清泛网 - 专注C/C++及内核技术
...和 大端模式的决定因素小端模式 和 大端模式：几乎是由CPU决定的，而非OS或编译器。大端模式和小端模式的区别这里暂不讨论，这里讨论他们是由操作系统、CPU还是编译器决定的呢？
通常来讲，可能大多数人认为是操作系统...
Using Java with Nvidia GPUs (CUDA)
...of the matrix. In this case, one can expect that the GPU will outperform a CPU at a certain matrix size. Another example could be when many complex trigonometric computations (sine/cosine etc) are performed on "few" data elements.
As a rule of thumb: You can assume that reading/writing one data el...
Stack Memory vs Heap Memory [duplicate]
...m C++.
Generally speaking, the stack is preferred as it is usually in the CPU cache, so operations involving objects stored on it tend to be faster. However the stack is a limited resource, and shouldn't be used for anything large. Running out of stack memory is called a Stack buffer overflow. It's...