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音乐制作器 · App Inventor 2 中文网
...放完会自动从头再来，节奏才不会断。
播放和停止
代码简单到不能再简单，一个按钮开、一个按钮关：
when 按钮_鼓.Click() {
音频播放器_鼓.Start()
}
when 按钮_停鼓.Click() {
音频播放器_鼓.Stop()
}
其他乐器照着来，把组件...
What is “git remote add …” and “git push origin master”?
...
git is like UNIX. User friendly but picky about its friends. It's about as powerful and as user friendly as a shell pipeline.
That being said, once you understand its paradigms and concepts, it has the same zenlike clarity that I've come...
大单融资后，MOOC去哪儿 - 资讯 - 清泛网 - 专注C/C++及内核技术
...网曾获2000万美元融资，学堂在线曾获1500万美元融资。有分析称，尚未找到盈利模式的MOOC之所以屡获资本青睐，更多是因为政策红利。在大额融资后，MOOC又该何去何从？
MOOC融资后的高校竞争
2013年被称为中国MOOC元年。这种大...
Socket客户端使用指导 · App Inventor 2 中文网
...作指导
TCP通信
电脑端完整代码
反复连接与断开
TCP Socket 客户端组件。
该组件用于主动连接远程 Socket 服务端，并提供文本或二进制数据的发送能力。
连接建立后会在后台线程持续监...
Turn a simple socket into an SSL socket
...rote simple C programs, which are using sockets ('client' and 'server').
(UNIX/Linux usage)
4 Answers
...
Determine file creation date in Java
...mentation you're out of luck. Addendum: same behaviour is in OpenJDK7.
On Unix filesystems you cannot retrieve the creation timestamp, you simply get a copy of the last modification time. So sad, but unfortunately true. I'm not sure why that is but the code specifically does that as the following w...
基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...到Access Token和Access Token Secret。
以新浪微博为例，大致的代码如下：
<?php
session_start();
$request_token_url = 'http://api.t.sina.com.cn/oauth/request_token';
$authorize_url = 'http://api.t.sina.com.cn/oauth/authorize';
$access_token_url = 'http://api.t.sina.c...
How do DATETIME values work in SQLite?
...24, 4714 B.C. according to the proleptic Gregorian calendar.
INTEGER as Unix Time, the number of seconds since 1970-01-01 00:00:00 UTC.
Applications can chose to store dates and times in any of these formats and freely convert between formats using the built-in date and time functions.
...
When is TCP option SO_LINGER (0) required?
...he TIME_WAIT will sit at the client doing no harm. Remember as it says in "UNIX Network Programming" third edition (Stevens et al) page 203: "The TIME_WAIT state is your friend and is there to help us. Instead of trying to avoid the state, we should understand it (Section 2.7)."
...
How to get current time in milliseconds in PHP?
...time(true) on the other hand returns the current time in seconds since the Unix epoch accurate to the nearest microsecond (see PHP reference). It's actually very easy to test if you run the above code in a loop and display the milliseconds.
– laurent
Dec 18 '12...