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两大桌面系统之战：Yosemite vs Windows 10 - 操作系统(内核) - 清泛网 - ...
... 的主要对比，OS X Yosemite 向我们证明了一个操作系统应该如何演变进化，至于 Windows 10 最好的评价或许只能说，和上一代相比没有那么糟糕了。不知道各位读者有怎样的看法？Yosemite,Win10,OS X
实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...味着简陋，轮询数据库是不可以接受的，下面我们来看看如何解决这个问题。在这里我们放弃了传统的LAMP技术，转而使用Nginx与Lua来实现。
Modified Long Polling
此方案的主要思路是这样的：使用Nginx作为服务端，通过Lua协程来...
How to add facebook share button on my website?
...ok at the following code
FB Javascript SDK initialization
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: 'YOUR APP ID', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script'); e.async = true;
e.src...
What is the most effective way for float and double comparison?
...vate:
// The data type used to store the actual floating-point number.
union FloatingPointUnion {
RawType value_; // The raw floating-point number.
Bits bits_; // The bits that represent the number.
};
// Converts an integer from the sign-and-magnitude representation to
// t...
How does “cat
...1. Assign multi-line string to a shell variable
$ sql=$(cat <<EOF
SELECT foo, bar FROM db
WHERE foo='baz'
EOF
)
The $sql variable now holds the new-line characters too. You can verify with echo -e "$sql".
2. Pass multi-line string to a file in Bash
$ cat <<EOF > print.sh
#!/bin...
80后夫妻创业，如今身价68亿，怎么做到？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...对诊断治疗的帮助可想而知。“其实，玩的就是大数据，如何将大数据应用到智慧城市就是我们接下来的一大重要内容。”王麒诚说。
当然，王麒诚想做的远不止这些，他希望把汉鼎做成更大的一个集团帝国。
80后 创业 身价
How to check whether a script is running under Node.js?
...it:
Edit: to your updated question:
(function () {
// Establish the root object, `window` in the browser, or `global` on the server.
var root = this;
// Create a reference to this
var _ = new Object();
var isNode = false;
// Export the Underscore object for **CommonJS*...
How to disable back swipe gesture in UINavigationController on iOS 7
...etting the delegate to nil leads to hanging issues when you go back to the root view controller and make a swipe gesture before navigating elsewhere.
The following example assumes iOS 7:
{
id savedGestureRecognizerDelegate;
}
- (void)viewWillAppear:(BOOL)animated
{
savedGestureRecognizer...
ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的设计，写出一些网络聊天、文件传输等的网络软件。
如何在Windows上使用ZeroMQ请看这里：http://www.cnblogs.com/fengbohello/p/4369082.html
更多 ZeroMQ API ：http://www.cnblogs.com/fengbohello/p/4230135.html
作者：风波 mail : fengbohello@qq.com
ZeroMQ z...
Python error “ImportError: No module named”
...at was affecting it was that I had another Python version installed by the root, so if someone is working with a local installation of python, be sure that the Python installation that is running the programs is the local Python. To check this, just do which python, and see if the executable is the ...