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What is the minimum I have to do to create an RPM file?
...RCE0 : %{name}-%{version}.tar.gz
URL: http://toybinprog.company.com/
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
%description
%{summary}
%prep
%setup -q
%build
# Empty section.
%install
rm -rf %{buildroot}
mkdir -p %{buildroot}
# in builddir
cp -a * %{buildroot}
%clean
rm -rf ...
App Inventor 2 计时器（Clock）详细用法示例 · App Inventor 2 中文网
...返回的当前时刻格式化成文本：
24小时格式怎么写？
如何定时一小时？
如何定点执行，比如到20:23分执行？
如何实现多个定时任务？
关闭屏幕时，如何让计时器继续工作？
« 返回首页
计时器在界面设计中的...
初创公司如何利用社交媒体实现营销效果最大化？ - 资讯 - 清泛网 - 专注C/C...
初创公司如何利用社交媒体实现营销效果最大化？今年十月，美国调查机构皮尤研究中心发布了一份研究，其中显示美国成年人中有65%都使用社交媒体网站，这意味着如果你的公司没有开通相关社交账户，那么就会失去美国三分...
App Inventor 2 Web客户端（Web）详细用法示例 · App Inventor 2 中文网
...细用法示例
App Inventor 2 如何下载/保存网络图片？
设置好网络图片的url，然后执行Get方法即可，代码如下：
其中，特别要注意的是保存相应信息属性设置为真，这样才能将目标网络图...
how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...skipped if it would violate a primary/unique key constraint. For instance, MySQL has INSERT IGNORE .
11 Answers
...
Determine project root from a running node.js application
Is there a better way than process.cwd() to determine the root directory of a running node.js process? Something like the equivalent of Rails.root , but for Node.js. I'm looking for something that is as predictable and reliable as possible.
...
Calculate difference in keys contained in two Python dictionaries
... 3:3}
>>> pprint(DeepDiff(t1, t2), indent=2)
{ 'type_changes': { 'root[2]': { 'newtype': <class 'str'>,
'newvalue': '2',
'oldtype': <class 'int'>,
'oldvalue': 2}}}
Value of an it...
Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
...tive.
Is DDL transactional according to this document?
PostgreSQL - yes
MySQL - no; DDL causes an implicit commit
Oracle Database 11g Release 2 and above - by default, no, but an alternative called edition-based redefinition exists
Older versions of Oracle - no; DDL causes an implicit commit
SQL ...
How to generate .json file with PHP?
...t * from Posts limit 20";
$response = array();
$posts = array();
$result=mysql_query($sql);
while($row=mysql_fetch_array($result)) {
$title=$row['title'];
$url=$row['url'];
$posts[] = array('title'=> $title, 'url'=> $url);
}
$response['posts'] = $posts;
$fp = fopen('results.json...
App装到手机上就"失忆"？关于Activity生命周期的7个硬核问答 - A...
...要状态，切后台前必须持久化。
Q3: 横竖屏切换时页面重置，怎么锁死屏幕方向？
A: 屏幕旋转会触发Activity销毁重建，这是Android默认行为。在App Inventor 2中，打开Screen1的属性面板，把Screen.Orientation设为Portrait（竖屏锁定）或L...