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How does Google's Page Speed lossless image compression work?
...ted in the technical details, check out the source code:
png_optimizer.cc
jpeg_optimizer.cc
webp_optimizer.cc
For PNG files, they use OptiPNG with some trial-and-error approach
// we use these four combinations because different images seem to benefit from
// different parameters and this c...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的结点设备阻塞。Cache服务器具有缓存功能，所以大部分网页对象（Web page object），如html, htm, php等页面文件，gif,tif, png, bmp等图片文件，以及其他格式的文件，在有效期（TTL）内，对于重复的访问，不必从原始网站重新传送文件...
Where does Scala look for implicits?
...plicit conversion and an implicit parameter. For example:
def getIndex[T, CC](seq: CC, value: T)(implicit conv: CC => Seq[T]) = seq.indexOf(value)
getIndex("abc", 'a')
The method getIndex can receive any object, as long as there is an implicit conversion available from its class to Seq[T]. Be...
In Visual Studio C++, what are the memory allocation representations?
In Visual Studio, we've all had "baadf00d", have seen seen "CC" and "CD" when inspecting variables in the debugger in C++ during run-time.
...
App Inventor 2能编译出苹果iOS版App吗？ - App Inventor 2 中文网 - 清泛...
App Inventor 2能编译出苹果iOS版App吗？app_inventor_2_ios_app如题，首先可以明确地说目前并不支持，只支持iOS版AI伴侣进行测试，但是AI伴侣的版本更新一直都是落后于安卓版的，导致测试时会有一些不兼容或一些奇怪的问题，体验不...
【解决】Win10/Win11家庭版不支持远程桌面？如何开启远程桌面？ - 操作系统...
【解决】Win10/Win11家庭版不支持远程桌面？如何开启远程桌面？一、Win10家庭版是不支持远程桌面的。本人使用的电脑自带的是正版的win10家庭版，因为工作需要，需要使用到远程桌面，但是又不想重装系统，经过寻找发现可以借...
What is compiler, linker, loader?
...+
|
| ---> Pure C file ( comd:cc -E <file.name> )
|
V
+=================+
| |
| Lexical Analyzer|
| |
+------------...
Difference between API and ABI
...use you added an argument to a function, or changed the name of something accessible outside of your local code. Any time you change a header, and it forces you to change something in a .c/.cpp file, you've made an API-change.
An ABI change is where code that has already been compiled against versi...
Can I change the checkbox size using CSS?
...gt;
<div class="big">
<input type="radio" name="radio_2" id="cc" value="1" checked />
<label for="cc">Radio big</label>
<br />
<input type="radio" name="radio_2" id="dd" value="2" />
<label for="dd">Radio big</label>
</div>
...
Style disabled button with CSS
...und-position and background-repeat. That way, the image dragging will not occur.
Selection problem: here is a link to the specific question:
How to disable text selection highlighting?
Example for the disabled selector:
button {
border: 1px solid #0066cc;
background-color: #0099cc;
...