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https://www.tsingfun.com/it/tech/1336.html 

推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术

推荐系统算法初探最近因为PAC平台自动化的需求,开始探坑推荐系统。这个乍一听去乐趣无穷的课题,对于算法大神们来说是这样的:而对于刚接触这个领域的我来...最近因为PAC平台自动化的需求,开始探坑推荐系统。这个乍一...
https://www.tsingfun.com/it/tech/1392.html 

程序员之网络安全系列(五):数字证书以及12306的证书问题 - 更多技术 - ...

...器读取证书。 浏览器发现证书机构是Symantec,然后会在操作系统中受信任的发布机构的证书中去找Symantec的证书,如果找不到,那说明证书的发布机构是个假的,或者不是被权威机构认证的,证书可能有问题,程序会给出一个错...
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Linux下追踪程序退出(崩溃)思路 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

Linux下追踪程序退出(崩溃)思路linux-issue-trackingLinux下追踪程序退出(崩溃)思路;history命令用法;linux下查看所有登录用户的历史操作命令。 Linux下程序退出(崩溃)时总会留下一些蛛丝马迹,问题追踪思路总结如下: 1、查看程序...
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Win7以上操作系统清理系统图标缓存脚本 - 脚本技术 - 清泛IT论坛,有思想、有深度

本帖最后由 沧海一粟 于 2015-07-21 13:43 编辑 rem 关闭Windows外壳程序explorer taskkill /f /im explorer.exe rem 清理系统图标缓存数据库 attrib -h -s -r "%userprofile%\AppData\Local\IconCache.db" del /f "%userprofile%\AppData\Local\IconCache.db" attrib...
https://www.tsingfun.com/it/cpp/1284.html 

STL 算法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...传递给函数模板的一种参数格式而已 STL中算法分类: 操作对象 直接改变容器的内容 将原容器的内容复制一份,修改其副本,然后传回该副本 功能: 非可变序列算法 指不直接修改其所操作的容器内容的算法 可变序列算...
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Running unittest with typical test directory structure

...iables, something like this works fine in a bootstrap script: import sys, os sys.path.insert(0, os.path.dirname(__file__)) Then your instructions to your users can be as simple as "python runtests.py". Of course, if the path you need really is os.path.dirname(__file__), then you don't need to a...
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How to resolve symbolic links in a shell script

...ve works with GNU readlink and FreeBSD/PC-BSD/OpenBSD readlink, but not on OS X as of 10.11. GNU readlink offers additional, related options, such as -m for resolving a symlink whether or not the ultimate target exists. Note since GNU coreutils 8.15 (2012-01-06), there is a realpath program availab...
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OS X Bash, 'watch' command

...'m looking for the best way to duplicate the Linux 'watch' command on Mac OS X. I'd like to run a command every few seconds to pattern match on the contents of an output file using 'tail' and 'sed'. ...
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SQL Client for Mac OS X that works with MS SQL Server [closed]

How can I connect to a remote SQL server using Mac OS X? I don't really need a GUI, but it would be nice to have for the color coding and resultset grid. I'd rather not have to use a VM. ...
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C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...增加与之相应的引用计数;对一个对象进行赋值时,赋值操作符减少左操作数所指对象的引用计数(如果引用计数为减至0,则删除对象),并增加右操作数所指对象的引用计数;调用析构函数时,构造函数减少引用计数(如果...