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Understanding garbage collection in .NET
...hen the freachable queue is empty (which is usually the case), this thread sleeps. But when entries appear, this thread wakes, removes each entry from the queue, and calls each object's Finalize method. The garbage collector compacts the reclaimable memory and the special runtime thread empties the ...
乐高机器人®组件 · App Inventor 2 中文网
... of a motor on the robot.
KeepAlive()
Keep Alive. Returns the current sleep time limit in milliseconds.
ListFiles(wildcard)
Returns a list containing the names of matching files found on the robot.
LsGetStatus(sensorPortLetter)
Returns the count of available bytes to read.
LsRead(s...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...derer 调用 onSurfaceCreated、onSurfaceChanged、onDrawFrame 调用本机函数。
查看此结构，我们可以看到创建一个将渲染位图并可以在 Mono 和 Stereo 中查看它们的应用程序非常简单。但是，如果您需要实现一些动态内容，例如位图上的标记...
load and execute order of scripts
...cript has been loaded and executed.
To test this fact:
// file: test.php
sleep(10);
die("alert('Done!');");
// HTML file:
<script type="text/javascript" src="test.php"></script>
Dynamically added scripts are executed as soon as they are appended to the document.
To test this fact:
...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...If you run sc.makeRDD(0 to 9, 2).mapPartitions(it => { java.lang.Thread.sleep(new java.util.Random().nextInt(1000)); it } ).map(_.toString).fold("")(_ + _) with 2+ cores several times, I think you will see it produces random (partition-wise) order. I've updated my answer accordingly.
...
Getting started with Haskell
...k in. This comes through use, but also through time. I find that sometimes sleeping on a problem helps more than anything else! Eventually, the idea will click, and you will wonder why you struggled to understand a concept that in reality is incredibly simple. It is awesome when this happens, and wh...
Regex Pattern to Match, Excluding when… / Except between
... Yes, got carried away writing last night and wrote at the bottom that I'd sleep on it and tidy up later. :) Yes the trick is simple but I don't share your perception that it is "basic" because it doesn't seem to be part of the common tools people use to solve exclusion problems. When I googled for ...
一个故事告诉你比特币的原理及运作机制 - 创意 - 清泛网 - 专注C/C++及内核技术
...样子，各个字段的意义后面会说到
编码生成器（哈希函数）。中本聪又向矿工组织的每个组分发了若干编码生成器，这个东西很神奇，将一页账簿填好内容的账簿纸放入这个机器，机器会在账簿纸的“本账单编号”一栏自动...
Hidden Features of MySQL
...--------+------------------+
| 1 | root | localhost:32893 | NULL | Sleep | 0 | | NULL |
| 5 | system user | | NULL | Connect | 98 | Waiting for master to send event | NULL |
| 6 | system user | ...
Does PHP have threading?
...$t->start()){
while($t->isRunning()){
echo ".";
usleep(100);
}
$t->join();
}
For linux there is an installation guide right here at stackoverflow's.
For windows there is one now:
First you need the thread-safe version of php.
You need the pre-compiled versio...