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Unicode and UTF-8 - 综合 - 清泛IT论坛，有思想、有深度
...英文存储空间会Double！
为了解决这些现实生活中遇到的问题，UTF-8编码应运而生！
言归正传,对于UTF-8：
UTF-8是针对Unicode(UCS-2或UCS-4)的可变长度编码方式，是一种前缀码，它可用来编码Unicode中的任何一个字符。UTF-8编码和ASCII...
图片轮播拓展 - ColinTreeSlideShow - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...一个空的 水平滚动布局，将宽高设置好
（目前组件有个问题，在加入图片之后调整这个布局，图片不会跟随改变大小）如图（背景颜色可以先设置好）：
在添加列表项之前先初始化一下，调用传入一个参数：调用ColinTreeSlideSh...
Beginner's guide to ElasticSearch [closed]
...irst principals in context of Elasticsearch. While the reference docs are all about finding the precise parameter you need, the Guide is a narrative that discusses problems in search and how to solve them.
Best of all, the book is OSS and free (unless you want to buy a paper copy, in which case O'...
What is the difference between a strongly typed language and a statically typed language?
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What is the difference between a strongly typed language and a statically typed language?
A statically typed language has a type system that is checked at compile time by the implementation (a compiler or interpreter). The type check rejects some programs, and programs that pass the check u...
Tutorials and libraries for OpenGL-ES games on Android [closed]
...d create a free version of the game on the market - after which I cannot really sell my app, I can only give people an opportunity to support it. This is possible on Android because Google has virtually no restrictions on the market (which is good). On the iPhone market it might be different, becaus...
What's the “average” requests per second for a production web application?
... second vs. requests per second. I think requests/second is in that same ballpark(100 to 200) but with streaming it shoots up to 1140 records / second (doing ndjson). Anyways thought I would share more numbers. (not sure if this will change as that was tested streamed through 2 microservices into...
Get ffmpeg information in friendly way
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If anyone ever need, I've written a PHP solution based on that answer: stackoverflow.com/questions/11805207/…
– Paulo Freitas
Aug 5 '12 at 11:33
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MySQL pagination without double-querying?
... help a lot.
The other way is to use SQL_CALC_FOUND_ROWS clause and then call SELECT FOUND_ROWS(). apart from the fact you have to put the FOUND_ROWS() call afterwards, there is a problem with this: There is a bug in MySQL that this tickles that affects ORDER BY queries making it much slower on lar...
Redirect from an HTML page
...=http://example.com/" />
Note: Place it in the head section.
Additionally for older browsers if you add a quick link in case it doesn't refresh correctly:
<p><a href="http://example.com/">Redirect</a></p>
Will appear as
Redirect
This will still allow you to get to ...
Convert MySql DateTime stamp into JavaScript's Date format
...en here are either overcomplicated or just will not work (at least, not in all browsers). If you take a step back, you can see that the MySQL timestamp has each component of time in the same order as the arguments required by the Date() constructor.
All that's needed is a very simple split on the ...