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切换屏幕后如何自动恢复蓝牙连接 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
切换屏幕后如何自动恢复蓝牙连接切换屏幕后，绝大部分组件及拓展都是创建的新对象，类似蓝牙、 mqtt 的连接会全部失效。两种思路：
1，使用虚拟屏幕，一个屏幕上多个布局，控制显示隐藏模拟实现多屏幕，速度还快！
2...
Connect to a locally built Jekyll Server using mobile devices in the LAN
...e command line.
That will make Jekyll's HTTP server bind to all available IPs, rather than just to localhost.
You can also add this to your _config.yml with host: 0.0.0.0. GitHub will simply ignore this when you push, so it's safe to use if you don't mind having your work openly accessible on your...
HTTP test server accepting GET/POST requests
...ttps://httpbin.org/anything Returns most of the below.
https://httpbin.org/ip Returns Origin IP.
https://httpbin.org/user-agent Returns user-agent.
https://httpbin.org/headers Returns header dict.
https://httpbin.org/get Returns GET data.
https://httpbin.org/post Returns POST data.
https://httpbin.o...
How do I simulate a low bandwidth, high latency environment?
... instructions, you're enabling a firewall. For just simulating a different IP connection, you could (for example) do the following:
Create a file /etc/rc.firewall.56k which contains the following:
ipfw add pipe 1 ip from any to any out
ipfw add pipe 2 ip from any to any in
ipfw pipe 1 config b...
Get hostname of current request in node.js Express
... be no way to detect the actual host without a request, you could have multiple hosts configured, but this is what I was looking for!
– Jesse
Sep 22 '11 at 0:38
2
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微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区，为创新赋能！
...能做到“微”，言简意赅，其次这样的限制是考虑到短信更新状态的字数限制，本身是160字母的限制，再留20字给id长度，剩余140字母留给用户发挥。此外，YAHOO!的meme（2,000字）和Google的Buzz（没有限制）等对字数都没有短而精的...
How do I copy a folder from remote to local using scp? [closed]
...ound: the -C flag adds compression and the -c flag lets you pass in other cipher types for better performance, like scp -c blowfish a@b:something . as seen in dimuthu's answer
– Automatico
Jun 26 '14 at 20:48
...
创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...限性。
最后，创建物化视图
在数据库B上创建定时增量更新的物化视图，方法如下：
create materialized view t_mv_test
refresh fast on demand
start with sysdate next sysdate+1/288
as
select * from t_mv_test@dblink_name;
这是增量更新机制的物化视图的...
Addressing localhost from a VirtualBox virtual machine [closed]
....agaric.com/localhost-from-virtualbox-xp-install-ubuntu
It suggests using IP: http://10.0.2.2, and it worked for me.
So, I edited the hosts file, C:\windows\system32\drivers\etc\hosts, and added this entry:
10.0.2.2 outer
If you're testing on IE8, remember to put http:// in the address bar. ...
微博为什么限制140字(附短信70字限制考) - 创意 - 清泛网 - 专注C/C++及内核技术
...能做到“微”，言简意赅，其次这样的限制是考虑到短信更新状态的字数限制，本身是160字母的限制，再留20字给id长度，剩余140字母留给用户发挥。
此外，YAHOO!的meme（2,000字）和Google的Buzz（没有限制）等对字数都没有短而精...