Python Standard Library "We'd like to pretend that 'Fredrik' is a role, but even hundreds of volunteers couldn't possibly keep up. No, 'Fredrik' is the result of crossing an http server with a spam filter with an emacs whatsit and some other stuff be…

The Python Standard Library¶ While The Python Language Reference describes the exact syntax and semantics of the Python language, this library reference manual describes the standard library that is distributed with Python. It also describes some of…

一.概述 1.1 关于JSON数据格式 JSON (JavaScript Object Notation), specified by RFC 7159 (which obsoletes RFC 4627) and by ECMA-404, is a lightweight data interchange format inspired by JavaScript object literal syntax (although it is not a strict subset of Java…

官方文档:https://docs.python.org/3.5/library/http.html 偷个懒,截图如下: 即,http客户端编程一般用urllib.request库(主要用于“在这复杂的世界里打开各种url”,包括:authentication.redirections.cookies and more.). 1. urllib.request—— Extensible library for opening URLs 使用手册,结合代码写的很详细:HOW TO Fetch In…

http.server是用来构建HTTP服务器(web服务器)的模块,定义了许多相关的类. 创建及运行服务器的代码一般为: def run(server_class=HTTPServer, handler_class=BaseHTTPRequestHandler): server_address = ('', 8000) httpd = server_class(server_address, handler_class) httpd.serve_forever() 类HTTPServer,是T…

http.cookies — HTTP state management http.cookies模块定义了一系列类来抽象cookies这个概念,一个HTTP状态管理机制.该模块支持string-only的简单cookies,也支持任意序列化数据类型(serializable data-type)作为cookie的value. 该模块允许下列字符集都可以作为有效字符来表示Cookie name(as key):字符集,string.ascii_letters, string.digits and…

内建函数列表 Built-in Functions abs() divmod() input() open() staticmethod() all() enumerate() int() ord() str() any() eval() isinstance() pow() sum() basestring() execfile() issubclass() print() super() bin() file() iter() property() tuple() bool() filter…

[12c]扩展数据类型(Extended Data Types)-- MAX_STRING_SIZE 在12c中,与早期版本相比,诸如VARCHAR2, NAVARCHAR2以及 RAW这些数据类型的大小会从4K以及2K字节扩展至32K字节.只要可能,扩展字符的大小会降低对LOB 数据类型的使用.为了启用扩展字符大小,你必须将MAX_STRING_SIZE的初始数据库参数设置为EXTENDED. 要使用扩展字符类型需要执行以下过程: 1.关闭数据库 2.以升级模式重启数据库3.更改参数: ALT…

Data Types in the Kernel Use of Standard C Types /* * datasize.c -- print the size of common data items * This runs with any Linux kernel (not any Unix, because of <linux/types.h>) * * Copyright (C) 2001 Alessandro Rubini and Jonathan Corbet * Copyr…

前言 这是我阅读<The C++ standard library, 2nd Edition>所做读书笔记的第一篇.这个系列基本上会以一章一篇的节奏来写,少数以C++03为主的章节会和其它章节合并,一些内容较多的章节也会抽出几个独立的章节.这些博文不分析具体的应用情景,仅仅用来记录C++11新增的知识点.关于C++11知识点的详细解析,请参考C++11 FAQ:关于C++03以及STL的较详尽解析,请参考相关著作或者网络资料:推荐<C++ Primer,4th edition>和&…