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Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注C++内核技术
...处理变量，从而让我们的命令或是规则更为的灵活和具有智能。make所支持的函数也不算很多，不过已经足够我们的操作了。函数调用后，函数的返回值可以当做变量来使用。
一、函数的调用语法
函数调用，很像变量的使用...
Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注C++内核技术
...处理变量，从而让我们的命令或是规则更为的灵活和具有智能。make所支持的函数也不算很多，不过已经足够我们的操作了。函数调用后，函数的返回值可以当做变量来使用。
一、函数的调用语法
函数调用，很像变量的使用...
How do I use floating-point division in bash?
...
so you mean like VAR=$(echo "scale=2; $(($IMG_WIDTH/$IMG2_WIDTH))" | bc) ?
– Medya Gh
Oct 4 '12 at 7:22
56
...
How do I resize an image using PIL and maintain its aspect ratio?
...
@Eugene: try something like s= img.size(); ratio = MAXWIDTH/s[0]; newimg = img.resize((s[0]*ratio, s[1]*ratio), Image.ANTIALIAS)? (that's for floating point division though :)
– gnud
Dec 13 '12 at 12:23
...
Chrome hangs after certain amount of data transfered - waiting for available socket
...d serve them directly with Nginx for example.
Create a subdomain called img.yoursite.com and load all your images
from there.
Create a subdomain called scripts.yourdomain.com and load all your JS and CSS files from there.
Create a subdomain called sounds.yoursite.com and load all your MP3s from ...
Resizing an image in an HTML5 canvas
...rn Math.sin(x) * Math.sin(xx) / x / xx;
};
}
// elem: canvas element, img: image element, sx: scaled width, lobes: kernel radius
function thumbnailer(elem, img, sx, lobes) {
this.canvas = elem;
elem.width = img.width;
elem.height = img.height;
elem.style.display = "none";
th...
CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...GD便是不可少的，在此GD的安装不再进行描述
1、安装libpng (http://www.linuxfromscratch.org/blfs/view/svn/general/libpng.html)
#tar xvf libpng-1.2.10.tar.tar
#cd libpng-1.2.10
#./configure --prefix=/usr/local/png
#make;make install
#ln -s /usr/local/png/lib/* /usr/...
iPhone App Icons - Exact Radius?
... file name and add '@2x'. So if I had a file for my 72x72 icon named icon.png, I would also add a 114x114 PNG file named icon@2x.png to the project/target and Xcode would automatically use that as the icon on a retina display. You can see this in action on the Summary page of the application targe...
JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
...o make the canvas that this library produces responsive like a regular <img> tag?
– Erik Berkun-Drevnig
Sep 14 '16 at 18:26
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show 6 m...
jQuery控制图片的hover效果，不能通过css设置img的src属性 - 更多技术 - 清...
jQuery控制图片的hover效果，不能通过css设置img的src属性貌似不能通过css设置img的src属性。用jQuery控制图片的hover效果可以实现，代码如下：<script type="text javascript"> $(function 貌似不能通过css设置img的src属性。用jQuery控制图片的ho...