大约有 27,000 项符合查询结果（耗时：0.0185秒） [XML]
How do I test a file upload in rails?
... upload a user's avatar image" do
image = fixture_path + "/test_avatar.png"
file = ActionController::TestUploadedFile.new image, "image/png"
post :create, :user => { :avatar => file }
User.last.avatar.original_filename.should == "test_avatar.png"
end
end
This spec would req...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...= 600;
CreateMatrix(w, h, rand.NextDouble).Save("System.Random.png", ImageFormat.Png);
CreateMatrix(w, h, qrand.Random).Save("QuickRandom.png", ImageFormat.Png);
}
private static Image CreateMatrix(int width, int height, Func<double> f)
{
...
How to determine the first and last iteration in a foreach loop?
... {
?>
<div class="sub_node" style="display:none">
<img src="../images/dtree/join.gif" align="absmiddle" style="padding-left:2px;" />
<a id="'.$val['xsubcatid'].'" href="javascript:void(0)" onclick="getProduct(this , event)" class="sub_node_links" >
<...
How to pass command line argument to gnuplot?
...how to use more than 1 input parameter with shell variables:
output=test1.png
data=foo.data
gnuplot -e "datafile='${data}'; outputname='${output}'" foo.plg
and foo.plg:
set terminal png
set outputname
f(x) = sin(x)
plot datafile
As you can see,more parameters are passed with semi colons (like...
Cropping an UIImage
...ble deg)
{
return deg / 180.0 * M_PI;
}
UIImage* UIImageCrop(UIImage* img, CGRect rect)
{
CGAffineTransform rectTransform;
switch (img.imageOrientation)
{
case UIImageOrientationLeft:
rectTransform = CGAffineTransformTranslate(CGAffineTransformMakeRotation(rad(90...
Convert integer to string Jinja
...e I've got integers as strings coming from JSON content files: "hero_title_img_w": "111" and "hero_title_img2_w": "222". Then I'm adding them in .NJK file: {{ hero_title_img_w|int + hero_title_img2_w|int }} to use as image's width attribute. Hope it helps somebody one day.
– re...
How to Create Grid/Tile View?
...: 0.3rem;
background: salmon;
color: white;
left:0;
top:0;
}
img {
outline: 5px solid salmon;
}
li:nth-child(1),
li:nth-child(3),
li:nth-child(5),
li:nth-child(8),
li:nth-child(9),
li:nth-child(10),
li:nth-child(12)
{
grid-row: span 2;
}
<ul>
<li><img...
How do I center floated elements?
...margin-left: 3px;
background: url(/images/structure/pagination-button.png);
}
(remove the lines starting with - and add the lines starting with +.)
.pagination {
text-align: center;
}
.pagination a {
+ display: inline-block;
width: 30px;
height: 30px;
margin-left: 3px;
...
Fade/dissolve when changing UIImageView's image
...hen all you need is:
UIImage * toImage = [UIImage imageNamed:@"myname.png"];
[UIView transitionWithView:self.imageView
duration:5.0f
options:UIViewAnimationOptionTransitionCrossDissolve
animations:^{
self...
Linux Shell中 if else及大于、小于、等于逻辑表达式写法 - C/C++ - 清泛网...
...!/bin/sh
# 清除相关文件，并按时间段记录日志
#
DIR=/data/img_cache
DAY=`date +"%Y-%m-%d %H:%M"`
NUM=`ls $DIR |wc -l`
DIRNAME=`ls $DIR| grep leveldb | head -n 1 | awk '{print $NF}'`
if [[ $NUM -gt 3 ]];then
rm -rf $DIR/$DIRNAME
echo "---------$DAY----($DIR)----------------...