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解决WaitForSingleObject阻塞UI线程的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
解决WaitForSingleObject阻塞UI线程的问题WaitForSingleObjec 等待线程结束时会阻塞UI线程，导致界面不响应鼠标操作。解决原理：等待过程中对消息队列中消息进行转发处理。代码如下...WaitForSingleObjec 等待线程结束时会阻塞UI线程，导致...
How to invoke the super constructor in Python?
... initialiser twice.
Another way is to use super(), as others have shown. For single-inheritance, it does basically the same thing as letting you call the parent's initialiser.
However, super() is quite a bit more complicated under-the-hood and can sometimes be counter-intuitive in multiple inheri...
How to overload __init__ method based on argument type?
...
A much neater way to get 'alternate constructors' is to use classmethods. For instance:
>>> class MyData:
... def __init__(self, data):
... "Initialize MyData from a sequence"
... self.data = data
...
... @classmethod
... def fromfilename(cls, filename):
....
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...！
[initandlisten] db version v2.4.6
……..
[initandlisten] waiting for connections on port 27017
[websvr] admin web console waiting for connections on port 28017
mongodb默认自带提供了web访问接口，通过 IP + 端口的形式可以访问。
http://192.168.0.1:28017/
二、主...
How do you round to 1 decimal place in Javascript?
...1 d.p.
// NOTE: .toFixed() returns a string!
// To convert back to number format
parseFloat(number.toFixed(2))
// 12.34
// but that will not retain any trailing zeros
// So, just make sure it is the last step before output,
// and use a number format during calculations!
EDIT: Add round with pre...
Using module 'subprocess' with timeout
...rocess timeout support exists in the subprocess32 backport that I maintain for use on Python 2. pypi.python.org/pypi/subprocess32
– gps
Dec 9 '12 at 4:07
...
Proper use of beginBackgroundTaskWithExpirationHandler
... UIBackgroundTaskInvalid;
}
I have a UIBackgroundTaskIdentifier property for each background task
Equivalent code in Swift
func doUpdate () {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), {
let taskID = beginBackgroundUpdateTask()
var resp...
Difference between RegisterStartupScript and RegisterClientScriptBlock?
...sterClientScriptBlock is that RegisterStartupScript puts the javascript before the closing </form> tag of the page and RegisterClientScriptBlock puts it right after the starting <form> tag of the page?
...
How to programmatically show next view in ViewPager?
...
Unfortunately I do get different behavior, when the user swipes manually and when I jump using setCurrentItem. The order of calls is reversed. When I swipe, it first calls OnPageChangeListener#onPageSelected and then it calls s...
How to easily map c++ enums to strings
...ly. (No point in copying your string literals to std::strings in the map)
For extra syntactic sugar, here's how to write a map_init class. The goal is to allow
std::map<MyEnum, const char*> MyMap;
map_init(MyMap)
(eValue1, "A")
(eValue2, "B")
(eValue3, "C")
;
The function templ...