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App Inventor 2 鸿蒙先行版：AppInventor 从此支持全平台，不再安卓专属 - ...
...直比较谨慎的话题——App Inventor 2 的鸿蒙（HarmonyOS NEXT）版本。
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先说结论
鸿蒙先行版已经完成开发，独立试运行上线，但距离稳定可用，还有很长的路要走。
这不是什么官方公告，...
What is the largest Safe UDP Packet Size on the Internet
...y if you are on a reliable network - but if you're broadcasting across the internet at large, the larger you go, the more likely you'll be to run into packet transmission problems and loss.
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CSS center text (horizontally and vertically) inside a div block
...Update for 2020:
Unless you need make it work on earlier browsers such as Internet Explorer 10, you can use flexbox. It is widely supported by all current major browsers. Basically, the container needs to be specified as a flex container, together with centering along its main and cross axis:
#con...
KMSpico：Office2013/Win10一键激活工具，亲测有效 - 软件下载 - 清泛网 - ...
KMSpico：Office2013/Win10一键激活工具，亲测有效KMSpico Office2013 激活KMSpico激活工具是一款激活Win8、Windows8.1、win10和Office2013的工具，由国外网友heldigard基于KMSEmulator制作。KMSpico小巧、简单，只...KMSpico激活工具是一款激活Win8、Windows8.1...
How do I redirect to another webpage?
...y measures (although it isn't a great protective measure). If you're using Internet Explorer 8 or lower, these variables get lost when using any form of JavaScript page redirection (location.href, etc.).
Below we are going to implement an alternative for IE8 & lower so that we don't lose HTTP...
Iterating Over Dictionary Key Values Corresponding to List in Python
... runs_scored = float(scores[0])
runs_allowed = float(scores[1])
win_percentage = round((runs_scored**2)/((runs_scored**2)+(runs_allowed**2))*1000)
print '%s: %.1f%%' % (team, win_percentage)
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Internet Explorer 9 not rendering table cells properly
My website has always run smoothly with IE8, IE7, FF, Chrome and Safari. Now I'm testing it on IE9 and I'm experiencing a strange problem: in some pages, some tabular data renders incorrectly.
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Why should we include ttf, eot, woff, svg,… in a font-face
... but only recently has been supported by more than IE.
eot is needed for Internet Explorers that are older than IE9 - they invented the spec, but eot was a proprietary solution.
ttf and otf are normal old fonts, so some people got annoyed that this meant anyone could download expensive-to-license ...
What is the difference between AF_INET and PF_INET in socket programming?
...amily
PF = Protocol Family
Meaning, AF_INET refers to addresses from the internet, IP addresses specifically. PF_INET refers to anything in the protocol, usually sockets/ports.
Consider reading the man pages for socket(2) and bind(2). For the sin_addr field, just do something like the following t...
Determining 32 vs 64 bit in C++
...major compilers. I've found the most effective way to do this is the following.
First I pick my own representation. I prefer ENVIRONMENT64 / ENVIRONMENT32. Then I find out what all of the major compilers use for determining if it's a 64 bit environment or not and use that to set my variables. ...