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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
...e're looking for. Looking at your post, I suggest:
What time is measured by the clock? (real, user, system, or, hopefully not, wall-clock?)
What is the precision of the clock? (s, ms, µs, or faster?)
After how much time does the clock wrap around? Or is there some mechanism to avoid this?
Is the ...
target input by type and name (selector)
... however as a lot of the modern browsers implement the document.getElementsByClassName method which will be used to select elements and be much faster than selecting by the name attribute
share
|
im...
Can I write a CSS selector selecting elements NOT having a certain class or attribute?
...operties you're setting in this rule, some of them may either be inherited by descendants that are .printable, or otherwise affect them one way or another. For example, although display is not inherited, setting display: none on a :not(.printable) will prevent it and all of its descendants from disp...
How to remove multiple indexes from a list at the same time? [duplicate]
... Looping over indices backwards. Genius! I was here dreaming up some ridiculous situation of decrementing indices as I went along, when this was so much more elegant!
– Neil
Apr 20 '15 at 22:37
...
Declaring array of objects
...hich is an array and I want every element of the array to act as an object by default. To achieve this, I can do something like this in my code.
...
error C2280: \'std::mutex::mutex(const std::mutex &)\' : attempting to...
...或者标记为delete.
例如:
class Account {
public:
Account(int id_, double ba = 0.0) :id(id_), balance(ba){}
void withdraw(double amount){
balance -= amount;
}
void deposit(double amount){
balance += amount;
}
void printInfo() const {
std::cout << "Account id: " << ...
通过API获取IP信息、IP归属地 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Info.php?ip=8.8.8.8
{"code":0,"data":{"country":"\u7f8e\u56fd","country_id":"US","area":"","area_id":"","region":"","region_id":"","city":"","city_id":"","county":"","county_id":"","isp":"","isp_id":"","ip":"8.8.8.8"}}
注意：返回的json中有嵌套，解析时先解析出data，然后解析...
iOS开发(一)：真机调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...然后双击就会加入系统
注册你的设备
如果不知道UUID, 打开iTunes, 双击Serial Number
创建App ID
看说明创建你需要的APP ID, 主要是Bundle ID, 一般我们类似这样确保唯一 com.jackwang.nbapp
创建Provisioning Profile
选择iOS development, 点...
领域驱动设计系列（三）:事件驱动上 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... _equipmentRepository = equipmentRepository;
}
public void SetEquipmentBroken(string Id)
{
var equipment = _equipmentRepository.GetById(Id);
equipment.DeActive();
_emailService.SendEmail();
}
}
但是，问题来了，如果后来我们...
【phpcms v9】html静态化设置及URL规则优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...页面的默认生成规则是：
{$year}/{$catdir}_{$month}{$day}/{$id}.html|{$year}/{$catdir}_{$month}{$day}/{$id}_{$page}.html
或者：
{$categorydir}{$catdir}/{$year}/{$month}{$day}/{$id}.html|{$categorydir}{$catdir}/{$year}/{$month}{$day}/{$id}_{$page}.html
这样的规则生成...