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Convert RGBA PNG to RGB with PIL
...port for sorl thumbnails.
from PIL import Image
png = Image.open(object.logo.path)
png.load() # required for png.split()
background = Image.new("RGB", png.size, (255, 255, 255))
background.paste(png, mask=png.split()[3]) # 3 is the alpha channel
background.save('foo.jpg', 'JPEG', quality=80)
...
联网 App 第 5 课:带图商品墙,发布、搜索、详情与下架(综合,附 .aia 源...
...情页——同一屏切换卡片
跑起来看看
常见问题
动手改一改
学完以后
用到的组件
验证范围
第 5 课 带图商品墙:班级闲置物品交换。发布带图片的物品,大家在商品墙上搜索、看详情,卖家可以下架自己的商品。
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App Inventor 2 使用内置 Material 图标字体,免上传快捷展示专业图标 · A...
...erial 图标里的任意一个,还能和文字混排。图标是字体,改颜色、放大都不会模糊。
三步用上图标
拖一个标签(或按钮)到屏幕;
点它的字体属性,选「Material 图标字体」,确定后会自动弹出图标选择...
Resize image in PHP
...original file size */
list($w, $h) = getimagesize($_FILES['logo_image']['tmp_name']);
/*$ratio = $w / $h;
$size = $width;
$width = $height = min($size, max($w, $h));
if ($ratio < 1) {
$width = ...
What is the JSF resource library for and how should it be used?
...
<h:outputScript name="js/script.js" />
<h:graphicImage name="img/logo.png" />
Or, if you really need to have one, you can just give it a more sensible common name, like "default" or some company name.
<h:outputStylesheet library="default" name="css/style.css" />
<h:outputScr...
App上架国内应用市场,腾讯管家报病毒的解决历程 - App Inventor 2 中文网 ...
...外,从这个版本开始,AppInventor2中文网(www.fun123.cn)对Logo进行了全新的升级:
原Logo沿用的MIT官方Logo,国内我们已拥有了商标权!
新Logo更简洁,主要就是块拼接 + 蜜蜂 这2个元素,色彩更简约。
Rails 3.1 and Image Assets
...css to .css.scss.erb and do:
background-image:url(<%=asset_path "admin/logo.png"%>);
You may need to do a "hard refresh" to see changes. CMD+SHIFT+R on OSX browsers.
In production, make sure
rm -rf public/assets
bundle exec rake assets:precompile RAILS_ENV=production
happens upon de...
How can I make my match non greedy in vim?
...rldo s///
Example. Swap src and alt attributes in img tag:
<p class="logo"><a href="/"><img src="/caminoglobal_en/includes/themes/camino/images/header_logo.png" alt=""></a></p>
:perldo s/(src=".*?")\s+(alt=".*?")/$2 $1/
<p class="logo"><a href="/"><i...
Do I use , , or for SVG files?
...
For a logo or icon I would still recommend using an IMG tag for semantical reasons and make sure the SVG is just a vector illustration.
– Christian Landgren
Oct 18 '13 at 15:36
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2015互联网结束补贴战 从相杀到相爱只需一个长假 - 资讯 - 清泛网 - 专注C/...
...联网,突然想起前两天看到的一个段子,“2015年化缘的改叫众筹了,统计改叫大数据分析了,做耳机的改为可穿戴设备了,IDC的都自称云计算了,办公室出租改叫孵化器了,借钱给朋友改叫天使投资了,放高利贷都改叫资本运...
