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RSA 算法是如何诞生的 - 创意 - 清泛网 - 专注C/C++及内核技术
...读了一些公钥加密的历史，意外地发现这段历史竟然非常有趣。尤其是 RSA 算法的诞生过程，被很多书写得...最近为了研究某个极其无聊的问题，读了一些公钥加密的历史，意外地发现这段历史竟然非常有趣。尤其是 RSA 算法的...
How can you get the Manifest Version number from the App's (Layout) XML variables?
...ntext.getPackageName(), 0).versionName;
Either of these solutions would allow for placing the version name in XML. Unfortunately there isn't a nice simple solution, like android.R.string.version or something like that.
sh...
What's the meaning of exception code “EXC_I386_GPFLT”?
...hich is the x86's way to tell you that "you did something that you are not allowed to do". It typically DOESN'T mean that you access out of memory bounds, but it could be that your code is going out of bounds and causing bad code/data to be used in a way that makes for an protection violation of som...
微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区，为创新赋能！
...sage. We reserve 20 characters for people’s names, and the other 140 are all yours! (via Twitter FAQ)也就是说，twitter希望微博首先能做到“微”，言简意赅，其次这样的限制是考虑到短信更新状态的字数限制，本身是160字母的限制，再留20字给id长度...
Specifying rails version to use when creating a new application
I have two versions of rails (2.1.0 and 2.2.2) installed in my computer.
7 Answers
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Unit Testing AngularJS directive with templateUrl
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You're correct that it's related to ngMock. The ngMock module is automatically loaded for every Angular test, and it initializes the mock $httpBackend to handle any use of the $http service, which includes template fetching. The template system tries to load the template through $http and it become...
Recommendations of Python REST (web services) framework? [closed]
...portant in REST, and unless you're very careful about this, you'll end up falling into a REST anti-pattern.
Some frameworks that get it right are web.py, Flask and Bottle. When combined with the mimerender library (full disclosure: I wrote it), they allow you to write nice RESTful webservices:
imp...
How to get current route in Symfony 2?
... not a route. As such, Symfony doesn't know what route that is for. Typically, you have one route to one controller, so it may seem weird that this can't report anything besides "_internal", however, it is possible to create general-purpose controllers that get associated with more than one route ...
三个故事说穿了许多人 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...久而久之便习惯了。习惯了，便理所当然了。于是，直到有一天，甲将鸡蛋给...一 、 甲不喜欢吃鸡蛋，每次发了鸡蛋都给乙吃。
刚开始乙很感谢，久而久之便习惯了。
习惯了，便理所当然了。
于是，直到有一天，甲将鸡蛋...
%d,%c,%s,%x等转换符 释义 - C/C++ - 清泛网 - 专注C/C++及内核技术
...点数、十六进制数字和p-(P-)记数法(C99) %c 字符 %d 有符号十进制整数 %f 浮...转换说明符
%a(%A) 浮点数、十六进制数字和p-(P-)记数法(C99)
%c 字符
%d 有符号十进制整数
%f ...