大约有 40,000 项符合查询结果(耗时:0.0356秒) [XML]

https://www.tsingfun.com/it/tech/927.html 

“Adobe Flash Player因过期而遭到阻止”的内幕起因和解决办法 - 更多技术 ...

...情况。随后我尝试电脑里第二浏览器maxthon时并未出现此问题,此时,我大概猜到是怎么回事了…… ◆起因 大家先听我慢慢道来,这跟前不久我们跟踪报道的Hacking Team(以下简称HT)400GB内部资料泄露事件有莫大联系。如果说...
https://www.tsingfun.com/it/tech/1080.html 

Memcached下一站:HandlerSocket! - 更多技术 - 清泛网 - 专注C/C++及内核技术

...形中让Memcached成为故障的根源: Memcached数据一致性的问题:当MySQL数据变化后,如果不能及时有效的清理掉过期的数据,就会造成数据不一致。这在强调即时性的Web2.0时代,不可取。 Memcached崩溃后的雪崩效应:作为缓存的Memc...
https://stackoverflow.com/ques... 

SQL SELECT speed int vs varchar

...ent date types: int fields occupy between 2 and 8 bytes, with 4 being usually more than enough ( -2147483648 to +2147483647 ) character types occupy 4 bytes plus the actual strings. share | impro...
https://stackoverflow.com/ques... 

Asynchronous vs Multithreading - Is there a difference?

...ver the operation that needs to happen asynchronously does not require the CPU to do work, that operation can be done without spawning another thread. For example, if the async operation is I/O, the CPU does not have to wait for the I/O to complete. It just needs to start the operation, and can the...
https://stackoverflow.com/ques... 

Implement C# Generic Timeout

... The really tricky part here was killing the long running task through passing the executor thread from the Action back to a place where it could be aborted. I accomplished this with the use of a wrapped delegate that passes out th...
https://bbs.tsingfun.com/thread-841-1-1.html 

C语言面试那些事儿──一道指针与数组问题 - c++1y / stl - 清泛IT社区,为创新赋能!

...言指针较晦涩和难懂的地方。 理解了这两点的话,上述问题则十分简单:a + 1:现在把a看作一个指针,指针+1操作,根据C语言语义,实际增加偏移量的是指针指向类型的长度,即32位机器下的int型,即4字节,故a+1就是&a[1],...
https://stackoverflow.com/ques... 

Greenlet Vs. Threads

... Greenlets provide concurrency but not parallelism. Concurrency is when code can run independently of other code. Parallelism is the execution of concurrent code simultaneously. Parallelism is particularly useful when there's a lot of work to be done in userspace, an...
https://stackoverflow.com/ques... 

Why does multiprocessing use only a single core after I import numpy?

...affinity on import. As far as I can tell, this problem seems to be specifically caused by them linking against multithreaded OpenBLAS libraries. A workaround is to reset the task affinity using os.system("taskset -p 0xff %d" % os.getpid()) With this line pasted in after the module imports, my ex...
https://www.tsingfun.com/it/cpp/2052.html 

coinitialize失败,返回值是0x80010106 无法在设置线程模式后对其加以更改 ...

...ze()不当所致。遂改用 CoInitializeEx(NULL, COINIT_MULTITHREADED); 问题得以解决。 CoInitialize、CoInitializeEx都是windows的API,主要是告诉windows以什么方式为程序创建COM对象,原因是程序调用com库函数(除CoGetMalloc和内存分配函数)之前...
https://www.tsingfun.com/it/ai... 

App Inventor 2能编译出苹果iOS版App吗? - App Inventor 2 中文网 - 清泛...

...后于安卓版的,导致测试时会有一些不兼容或一些奇怪的问题,体验不是很好,因此 如题,首先可以明确地说目前并不支持,只支持iOS版AI伴侣进行测试,但是AI伴侣的版本更新一直都是落后于安卓版的,导致测试时会有一些...