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Mac OS X 入门操作常见问题集锦（持续更新） - 更多技术 - 清泛网 - 专注C/...
...为jpg: defaults write com.apple.screencapture type jpg
默认为PDF: defaults write com.apple.screencapture type pdf
默认为gif: defaults write com.apple.screencapture type gif
默认为png: defaults write com.apple.screencapture type png
这样以后使用起来就...
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...
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 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
...
Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...影响TCP连接寿命的因素，实现Android微信后台自适应心跳算法，同时使用GCM作为辅助通道增加新消息通知的可靠性。
2. WhatsApp、Line、微信的Push策略分析
2.1 WhatsApp
在不支持GCM的设备上，采用和微信类似的长连接+心跳策略，WIFI...
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 ...
HTTP URL Address Encoding in Java
... "http",
"search.barnesandnoble.com",
"/booksearch/first book.pdf",
null);
URL url = uri.toURL();
//or String request = uri.toString();
(the single-argument constructor of URI does NOT escape illegal characters)
Only illegal characters get escaped by above code - it does NOT ...
App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...使用 String.Split 获取字节列表。
对于转换，我使用以下算法：
1) 用分号替换所有逗号
2) 用分号拆分字符串
3) 删除前导和尾随空格
4) 使用 Integer.decode () 转换为整数
5) 检查值是否小于 0 或大于 255。
二进制数据（字节数组）
对...