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App Inventor 2 连接方式：AI伴侣、模拟器、USB · App Inventor 2 中文网
...Webrtc技术）后去除了这一限制，经验证手机、电脑任意的网络环境下均可正常测试，欢迎体验！
Q：AI伴侣可以使用苹果手机测试吗？
A：可以，苹果AppStore搜索“mit app inventor”下载即可，但功能有限。
首先，版本较安卓AI...
How to install Android SDK Build Tools on the command line?
...a stands for --all and -t stands for --filter.
If you need to install multiple packages do:
android update sdk -u -a -t 1,2,3,4,..,n
Where 1,2,..,n is the package number listed with the list command above
share
...
Setting a timeout for socket operations
... like:
Socket socket = new Socket();
socket.connect(new InetSocketAddress(ipAddress, port), 1000);
Quoting from the documentation
connect
public void connect(SocketAddress endpoint, int timeout) throws IOException
Connects this socket to the server with a specified timeout value. A t...
Determine a user's timezone
...r time zone, not your time zone's offset from GMT. To fix this, simply multiply by -1.
Also note that w3school says:
The returned value is not a constant, because of the practice of using
Daylight Saving Time.
share...
What is the difference between “expose” and “publish” in Docker?
...orts without exposing them. I tried that. The catch here is that container IP address is unpredictable. I believe that link is used to specify which container you want to connect (so you link to specific container IP), not to enable connection.
– Jiri
Mar 4 '14...
程序员用数据思维教你如何追女生 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...去一百年，我们所有的记录都是可以追溯的。
所以利用网络云笔记，实时保存每一次约会的记录，让我们的约会变得有技术保障！
江湖上那些印个回忆录相册什么的小伎俩，在我们这根本不是事儿，我们一键导出就可以了。
...
Where is Erlang used and why? [closed]
...It has to route many messages simultaneously, and handle many a lot of TCP/IP connections.
So we have 2 features:
handle many connections
route messages given some aspects of the message
These are examples where erlang shines.
handle many connections
It is very easy to build scalable non-bloc...
Can I run multiple programs in a Docker container?
...
There can be only one ENTRYPOINT, but that target is usually a script that launches as many programs that are needed. You can additionally use for example Supervisord or similar to take care of launching multiple services inside single container. This is an example of a docker container run...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...运行mongostat的话，结果会显示很高的locked值。
…
我在网络上找到一篇：MongoDB Pre-Splitting for Faster Data Loading and Importing，看上去和我的问题很类似，不过他的问题实质是由于自动分片导致数据迁移所致，解决方法是使用手动分片...
“Adobe Flash Player因过期而遭到阻止”的内幕起因和解决办法 - 更多技术 ...
...我这里摆出来就是告诉大家切勿图方便使用此办法，中了网络上某些不怀好意之人的圈套。Flash本就脆弱，漏洞频发，可以想象加载过期插件的风险。
先写这些，如果帮到大家欢迎把文章分享出去，再帮一帮其他还没解决问题...