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What is the difference between localStorage, sessionStorage, session and cookies?
...ion server side - most likely using a database, but possibly XML or a text/CSV file.
localStorage, sessionStorage, and cookies are all client storage solutions. Session data is held on the server where it remains under your direct control.
localStorage and sessionStorage
localStorage and sessionS...
How to read a .xlsx file using the pandas Library in iPython?
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DataFrame's read_excel method is like read_csv method:
dfs = pd.read_excel(xlsx_file, sheetname="sheet1")
Help on function read_excel in module pandas.io.excel:
read_excel(io, sheetname=0, header=0, skiprows=None, skip_footer=0, index_col=None, names=None, parse_c...
开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...。EMQX 支持与多种数据存储方式集成，包括内置数据库、文件、MySQL、PostgreSQL、MongoDB 和 Redis。此外，EMQX 为用户提供了黑名单功能，用户可以通过 Dashboard 和 HTTP API 将指定客户端加入黑名单以拒绝该客户端访问，除了客户端标识...
libxml install error using pip
...hy the downvote? This is the correct answer. It says "Python.h 没有那个文件或目录" Which means "no such file or directory". The python header files are missing. Install them and it will work.
– Lennart Regebro
Mar 3 '11 at 21:59
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Why are joins bad when considering scalability?
...to store structured data (you could do that with flat file constructs like csv or xml). A few of the options I listed will even let you completely build your join in advance, so the results are already done before you issue the query — just as if you had denormalized the data (admittedly at the co...
常用快速产品原型设计工具推荐 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...接的文档并输出成为HTML、PNG、OpenOffice、Word、PDF等格式的文件。
Prototype Composer
Prototype Composer是一款Serena出品的能够让非技术型的用户进行原型设计的免费软件，同时它还包括商业过程、活动、用户界面、需求和数据，不但...
How to decide when to use Node.js?
...ith 80+ upvotes. There's no simple way to read one record at a time from a CSV file. Etc.
I love NodeJS, it is fast and wild and fun, but I am concerned it has little interest in provable-correctness. Let's hope we can eventually merge the best of both worlds. I am eager to see what will replace...
程序员之网络安全系列（三）：数据加密之对称加密算法 - 更多技术 - 清泛网...
...称加密
对称加密采用了对称密码编码技术，它的特点是文件加密和解密使用相同的密钥，即加密密钥也可以用作解密密钥。 比如，我们给WORD文档设置密码1234, 那么其他人想要打开文档也必须输入1234才能打开。
常用加密算法:
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log all sql queries
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@CiroSantilli巴拿馬文件六四事件法轮功 This is a really old comment, very possibly Django 1.9 does not support this solution the same.
– cevaris
May 19 '16 at 17:32
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What is the difference between JSON and Object Literal Notation?
...ON is a textual, language-independent data-exchange format, much like XML, CSV or YAML.
Data can be stored in many ways, but if it should be stored in a text file and be readable by a computer, it needs to follow some structure. JSON is one of the many formats that define such a structure.
Such fo...