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Url decode UTF-8 in Python

...brary as well: import requests url = "http://www.mywebsite.org/Data%20Set.zip" print(f"Before: {url}") print(f"After: {requests.utils.unquote(url)}") Output: $ python3 test_url_unquote.py Before: http://www.mywebsite.org/Data%20Set.zip After: http://www.mywebsite.org/Data Set.zip Might be han...
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在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术

...使用之后,对系统可用性有较高要求,互联网服务通常会可用性目标定在99.99%及以上,但极少能达到99.999%的。Tim有一个服务由于功能简单且稳定,较少需要变更代码,且有容错的设计,服务池没有单点问题,所以跟同事们说20...
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Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...在登陆用户获取消息的时候,就是一个拉消息的过程;在消息发送给登陆用户的时候,就是一个推消息的过程。 速度 假设要推送一百万条消息的话,那么最直白的实现就是不断的插入,代码如下: <?php for ($msgid = 1; $msgi...
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Best practices for storing postal addresses in a database (RDBMS)?

...locality =&gt; Dependent locality (unused) postal_code =&gt; Postal code / ZIP Code thoroughfare =&gt; Street address premise =&gt; Apartment, Suite, Box number, etc. sub_premise =&gt; Sub premise (unused) A lessons I've learned: Don't store anything numerically. Store country and administrative...
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【App Inventor 2 数据可视化】使用柱状图和饼图收集数据 - App应用开发 - ...

...使用模拟器,请检查[安装说明]。 你能做什么?:挑战:你的数据做成图表为什么要开发一个收集数据的应用程序?哪种图表最能显示你的数据? 第1部分:了解应用模板下载应用模板查看设计检查代码 第2部分:在应用中添加...
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Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术

...的核心类提供I/O的功能(这里更确切的说是定时功能),总是一个io_service对象作为他的第一个构造函数,而第二个构造函数的参数设定timer会在5秒后到时(expired). boost::asio::deadline_timer t(io, boost::posix_time::seconds(5)); 这个简单的示例...
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How do I detect whether a Python variable is a function?

...n of "function" that is usually not what you need. For example, it rejects zip (technically a class): &gt;&gt;&gt; type(zip), isinstance(zip, types.FunctionType) (&lt;class 'type'&gt;, False) open (built-in functions have a different type): &gt;&gt;&gt; type(open), isinstance(open, types.Functio...
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Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...上面给出的程序链接中下载。 运行命令“ upx -d cm2 ”程序解压缩,显示如下: 代码: [ncc2008@localhost crack]$ upx -d cm2 Ultimate Packer for eXecutables Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 UPX 1.25 ...
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python tuple to dict

... +1 Beautiful!, I had to try it with zip dict(zip(*zip(*t)[::-1])). This is slower, uglier and using way more memory..likely 3x. – kevpie Apr 28 '11 at 1:35 ...
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Visual Studio Copy Project

... define Template name Template Description Icon Preview image Then it zips up your project into 'My Exported Templates' directory. You also have the option to make your template available when you create a new project. When you use your template to create a new project, the namespace wil...