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图表组件 · App Inventor 2 中文网
...为 y 值，从指定的电子表格组件导入数据。
在调用此函数之前，必须调用电子表格组件的 ReadSheet 方法来加载数据。 不需要在电子表格组件中使用 GotSheet 事件。
空列填充默认值（1、2、3、… 对于条目 1、2、3、…）。
...
iPhone App 开发第一步：从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...
4、网上学习如何在XCode中写一个HelloWorld，并在iOS 5.0的模拟器中运行成功后，开始真机调试过程。
首先，iPhone需要越狱，非越狱机器此处未研究如何在无IDP账号的情况下，真机调试。
接下来，还要做一些事情：
...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...an not be obtained, a system call has to be performed to put the thread to sleep; that is obviously extremely slow (system calls are in the order of 10 mircoseconds). Normally that is not really a problem because that thread has to sleep anyway-- but it could be a problem with high contention where ...
Bash script to set up a temporary SSH tunnel
... seconds to become available. My solution: while [ ! -e $ctrl_socket ]; do sleep 0.1; done
– Adam Wallner
Feb 11 '18 at 22:19
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How to make a Python script run like a service or daemon in Linux
... event loop (where your events are timer triggering, possibly, provided by sleep function).
I wouldn't recommend you to choose 2., because you would be, in fact, repeating cron functionality. The Linux system paradigm is to let multiple simple tools interact and solve your problems. Unless there...
实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... ngx.exit(ngx.HTTP_OK);
end
ngx.sleep(1);
end
ngx.say("YES");
ngx.exit(ngx.HTTP_OK);
';
}
...
}
注：为了处理服务端不知道客户端何时断开连接的情况，代码中引入超时...
Is Disney's FastPass Valid and/or Useful Queue Theory
...ng visitors with some kind of priority queue. They don't block, they don't sleep, they spend money. It works because john uses it at 11:00 AM, joe uses it at 11:15 AM (or 11:01 am). Now, if everyone had a fast pass, the regular line would be much faster while most visitors spent more money on food a...
Get Mouse Position
...tring[] args) throws InterruptedException{
while(true){
//Thread.sleep(100);
System.out.println("(" + MouseInfo.getPointerInfo().getLocation().x +
", " +
MouseInfo.getPointerInfo().getLocation().y + ")");
}
}
}
...
Is AsyncTask really conceptually flawed or am I just missing something?
...askTestActivity>(activity);
}
private static final int SLEEP_TIME = 200;
@Override
protected Void doInBackground(Void... params) {
for (int i = 0; i < MAX_COUNT; i++) {
try {
Thread.sleep(SLEEP_TIME);
...
云数据及Firebase组件简介 · App Inventor 2 中文网
...并且您的应用程序将停止工作。 此外，App Inventor 提供的模拟器不支持 Firebase 组件。
移动应用程序的一项流行功能是，在不同设备上使用同一应用程序的人们可以在应用程序内共享信息。 例如，游戏应用程序可能会跟踪游戏所...