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iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...等信息。如果没有处理它们，是不会通过apple的审查的。 系统自带的网络检查是原生的，AFNetworking也为我们添加了相关检测机制，所以这个直接在介绍AFNetworking的时候详解吧。
25.使用NSURLConnection下载数据
1. 创建对象
NSMutableU...
[精华]VC++对话框程序打印及打印预览的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...view)
CView::OnFilePrint 和CView::OnFilePrintPreview函数都进行打印操作，但View::OnFilePrint将实际发送到打印机，而CView::OnFilePrintPreview则将输出发送到程序窗口上方显示的预览窗口显示一个或两个打印页面的复制外观。利用上面加入的缺省...
为什么说自媒体到了最危险的时期？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...表等，都是个人生产内容和品牌运营。只有极少数是团队操作，比如专注于智能硬件的国仁的智东西团队。个人生产的好处就是可以保持作品一贯的调性，但是一个人坚持出东西是一件很困难的事情，罗辑思维的罗振宇每天6点...
Python: How would you save a simple settings/config file?
...ou know the datatype?
which outputs
List all contents
Section: mysql
x host:::localhost:::<type 'str'>
x user:::root:::<type 'str'>
x passwd:::my secret password:::<type 'str'>
x db:::write-math:::<type 'str'>
Section: other
x preprocessing_queue:::["preprocessing.scale_an...
How to start two threads at “exactly” the same time
...
To start the threads at exactly the same time (at least as good as possible), you can use a CyclicBarrier:
// We want to start just 2 threads at the same time, but let's control that
// timing from the main thread. That's why we have 3 "parties" instead of 2.
final CyclicBarrier gate = new ...
How does a language expand itself? [closed]
...it has many many layers, from the inner core of pure hardware to the outermost application layer. Each layer exposes parts of itself to the next outer layer, so that the outer layer may use some of the inner layers functionality.
In the case of e.g. Windows the operating system exposes the so-calle...
When is it appropriate to use UDP instead of TCP? [closed]
...red "reliable", whereas UDP doesn't guarantee anything and packets can be lost. What would be the advantage of transmitting data using UDP in an application rather than over a TCP stream? In what kind of situations would UDP be the better choice, and why?
...
What is the proper declaration of main?
...ograms that declare main with a return type of void; this is probably the most frequently violated rule concerning the main function).
There are two declarations of main that must be allowed:
int main() // (1)
int main(int, char*[]) // (2)
In (1), there are no parameters.
In (...
How does Windows 8 Runtime (WinRT / Windows Store apps / Windows 10 Universal App) compare to Silver
...ere. It does add quite a lot of new concepts in comparison to COM of old, most of which come directly from .NET - for example, WinRT object model has delegates, and events are done .NET-style (with delegates and add/remove subscriber methods, one per event) rather than the old COM model of event sou...
JavaFX and OpenJDK
...r I could switch to JavaFX for the user interface of my Java application. Most of my users would be using the Oracle JRE, which has JavaFX integrated these days. However, some are using OpenJDK (on linux). This (old) question suggests that OpenJDK deals very badly with JavaFX. According to this ...