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C++虚继承的概念 - C/C++ - 清泛网 - 专注C/C++及内核技术
...这个公共的基类就会产生多个实例(或多个副本)，若只想保存这个基类的一个实例，可以将这个公共基类说明为虚基类。
◇语法：
class 派生类: virtual 基类1，virtual 基类2，...，virtual 基类n
{
...//派生类成员声明
};
◇执行...
【PM干货】2015年阿里业务型PM笔试题 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...5年阿里业务型PM笔试题一、客观题（总共十题）下面那个文件是用户系统间的数据传输：1、UML2、HTML3、XML4、WML458、346、908、739、（）正方体六个面分别是红、...一、客观题（总共十题）
下面那个文件是用户系统间的数据传输...
大数据能否拯救中国足球？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...年10月20日，国务院印发了关于加快发展体育产业的第46号文件，简称“46号文”，将体育产业上升为“国家战略”。文件指出，到2025年，中国体育产业总规模将超过5万亿元。而今年4月《中国足球中长期发展规划》的发布不仅意...
The cause of “bad magic number” error when loading a workspace and how to avoid it?
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So did I, when I accidentally used load() instead of read.csv(). :p
– Waldir Leoncio
Feb 12 '14 at 19:31
35
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Ruby: What is the easiest way to remove the first element from an array?
...eful when extracting info without an aditional step header, *properties = CSV.read(file_path,encoding: 'ISO-8859-1')
– juliangonzalez
Feb 15 '17 at 17:23
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Split string into an array in Bash
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@YisraelDov: Bash has no way to deal with CSV by itself. It can't tell the difference between commas inside quotes and those outside them. You will need to use a tool that understands CSV such as a lib in a higher level language, for example the csv module in Python....
Dump Mongo Collection into JSON format
... The mongoexport utility takes a collection and exports to either JSON or CSV. You can specify a filter for the query, or a list of fields to output
Read more here: http://www.mongodb.org/display/DOCS/mongoexport
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“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
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Try this to read using pandas
pd.read_csv('u.item', sep='|', names=m_cols , encoding='latin-1')
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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 - ...
...，还是可以在这里打开应用，用户可以通过 Stacks 来打开文件或者文件夹。Mission Control 方便你查看当前打开哪些应用和文档，并在他们之间切换。Spaces 支持用户切换全屏运行的应用，创建或切换到另外的桌面。
Windows 1...
When to Redis? When to MongoDB? [closed]
... SQL-driven relational database: relational databases simplify to indexed CSV files, each file being a table; document stores simplify to indexed JSON files, each file being a document, with multiple files grouped together.
JSON files are similar in structure to XML and YAML files, and to dictiona...