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delegate keyword vs. lambda notation
...erence
Example:
var mytask = Task.Factory.StartNew(() =>
{
Thread.Sleep(5000);
return 2712;
});
mytask.ContinueWith(delegate
{
_backgroundTask.ContinueTask(() =>lblPercent.Content = mytask.Result.ToString(CultureInfo.InvariantCulture));
});
And I replace with lambda:(error)
...
How do I watch a file for changes?
...rt time pub = Monkey() while True: try: time.sleep(1) pub.watch() except KeyboardInterrupt: print('\nDone') break except: print(f'Unhandled error: {sys.exc_info()[0]}') `
– Vlad Bezden...
PHP - Extracting a property from an array of objects
...'return $o->id;'), $objects);
echo memory_get_usage() . "\n";
sleep(1);
}
// the output
4235616
4236600
4237560
4238520
...
GOOD
while (true)
{
$objects = array_map(function($o) { return $o->id; }, $objects);
echo memory_get_usage() . "\n";
sleep(1);
}
// the outpu...
使用std::string作为std::map的key出错解决 - C/C++ - 清泛网 - 专注C/C++及内核技术
...crosoft visual studio 11.0\vc\include\xstddef(179): 编译类 模板 成员函数“bool std::less<_Ty>::operator ()(const _Ty &,const _Ty &) const”时
1> with
1> [
1> _Ty=std::string
1> ]
1> c:\program files (x86)\microsoft visual studio 11.0\...
Print in one line dynamically
...plete example based on your code:
from sys import stdout
from time import sleep
for i in range(1,20):
stdout.write("\r%d" % i)
stdout.flush()
sleep(1)
stdout.write("\n") # move the cursor to the next line
Some things about this that may be surprising:
The \r goes at the beginning of...
Android: How to turn screen on and off programmatically?
...een and keep it on. Releasing the wakelock will allow the device to go to sleep on its own.
You can also take a look at using the PowerManager to set the device to sleep: http://developer.android.com/reference/android/os/PowerManager.html#goToSleep(long)
...
How can I use “puts” to the console without a line break in ruby on rails?
...str)
print str
$stdout.flush
end
100.times do
print_and_flush "."
sleep 1
end
Edit: I was just looking into the reasoning behind flush to answer @rubyprince's comment, and realised this could be cleaned up a little by simply using $stdout.sync = true...
$stdout.sync = true
100.times do
...
What's the Android ADB shell “dumpsys” tool and what are its benefits?
..._storag: 0% = 0% user + 0% kernel
pvr_workqueue: 0% = 0% user + 0% kernel
+sleep: 0% = 0% user + 0% kernel
+sleep: 0% = 0% user + 0% kernel
TOTAL: 6% = 1% user + 3% kernel + 0% irq
4)Getting memory usage informations
~$ adb shell dumpsys meminfo 'your apps package name'
Output:
** MEMINFO in p...
How do I kill background processes / jobs when my shell script exits?
...rap_with_arg 'stop' EXIT SIGINT SIGTERM SIGHUP
{ i=0; while (( ++i )); do sleep 0.5 && echo "a: $i"; done } &
{ i=0; while (( ++i )); do sleep 0.6 && echo "b: $i"; done } &
while true; do read; done
UPD: added minimal example; improved stop function to aviod de-trapping u...
数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...才能更准确的分词。
3、基于语义的分词，简而言之就是模拟人类对句子的理解来进行分词。需要先整理出中文语句的句法、语义信息作为知识库，然后结合句子的上下文，对句子进行单字切分后组合成词逐个带入知识库进行识...