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创建自定义 TinyWebDB 服务 · App Inventor 2 中文网
...ur own web service, follow these instructions:
Download App Engine for Python at http://code.google.com/appengine/ . After installing it, run the GoogleAppEngineLauncher by clicking its icon.
Download this sample code. It is a zip file containg the source code for your custom tinywebdb web ser...
When should you branch?
...ge workflow between different kind of branches: "
"How Software Evolves" (pdf)
It defines the term codeline (branch which records significant evolution steps of the code, either through tags at certain points, or through important merge back to the branch)
It introduce the mainline model (a centr...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...來說當你用socket()函式時，第二個參數指定為SOCK_STREAM，第三個參數指定為 IPPROTO_ICMP，如此socket()呼叫會得到WSAEPROTONOSUPPORT這個錯誤。WinSock 1。1版並不支援ICMP協定，所以呼叫socket()指定ICMP這個協定，就會發生錯誤。事實上，產生...
git + LaTeX workflow
...n in perl) that takes two latex files and produces a neat diffed output in pdf like this (image source):
You can combine git and latexdiff (plus latexpand if needed) in a single command using git-latexdiff (e.g. git latexdiff HEAD^ to view the diff between your worktree and the last-but-one commit)...
Return only string message from Spring MVC 3 Controller
...
//Load your attachment here
if (Arrays.equals(Constants.HEADER_BYTES_PDF, contentBytes)) {
headers.setContentType(MediaType.valueOf("application/pdf"));
fileName += ".pdf";
}
if (Arrays.equals(Constants.HEADER_BYTES_TIFF_BIG_ENDIAN, contentBytes)
|| Arrays.equals(Constantsr....
How can I list (ls) the 5 last modified files in a directory?
...22 phone2.7.py
-rw-r--r--@ 1 user staff 2.7M 10 Jan 15:26 03-cookies-1.pdf
-rw-r--r--@ 1 user staff 9.2M 9 Jan 16:21 Wk1_sem.pdf
-rw-r--r--@ 1 user staff 502K 8 Jan 10:20 lab-01.pdf
-rw-rw-rw-@ 1 user staff 2.0M 5 Jan 22:06 0410-1.wmv
...
How to adjust an UIButton's imageSize?
...
This worked beautifully for me. I created a PDF icon within Inkscape and the contentVerticalAlignment/contentHorizontalAlignment options got enabled me to scale it the way I was hoping to. Thank you for posting this.
– Adrian
May ...
How to set HTTP headers (for cache-control)?
...he time you leave the contents in the cache.
Use:
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$">
Header set Cache-Control "max-age=604800, public"
</FilesMatch>
Where: 604800 = 7 days
PS: This can be used to reset any header
...
三大运营商公布提速降费 比比谁更实惠？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...低用户通信支出。
中国联通将北京地区20M固定宽带资费从1780元/年降至1480元/年,50M资费从2680元/年降至1780元/年,100M资费从3280元/年降至1980元/年。
网友评论:
@胡晓奇:感谢克强总理!昂贵的通讯费,终于开始降价了。
@tigerhua_bike:...
WhatsApp比微信好在哪里？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...微信是免费应用，2013年底的月活跃用户为2.7亿。那么，从应用的功能和商业模式上看，WhatsApp和微信到底有什么相同和不同呢？
跨平台通讯应用WhatsApp由前雅虎员工创办于2009年，而微信则在2011年1月21日推出，微信一开始模仿...