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kaindy7633
一个Web开发者的自我修养
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [PWA概述](#pwa%E6%A6%82%E8%BF%B0) - [什么是PWA](#%E4%BB%80%E4%B9%88%E6%98%AFpwa) - [PWA中所涉及到的一些技术](#pwa%E4%B8%AD%E6%89%80%E6%B6%89%E5%8F%8A%E5%88%B0%E7%9A%84%E4%B8%80%E4%BA%9B%E6%8A%80%E6%9C%AF) - [DEMO](#demo) - [PWA中的Manifest](#pwa%E4%B8%AD%E7%9A%84manifest) - [Web App Manifest](#web-app-manifest) - [name, short_name](#name-short_name) - [start_url](#start_url) - [display](#display) - [orientation](#orientation) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第一章 快速上手](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E4%B8%80%E7%AB%A0-%E5%BF%AB%E9%80%9F%E4%B8%8A%E6%89%8B) - [交互式解释器](#%E4%BA%A4%E4%BA%92%E5%BC%8F%E8%A7%A3%E9%87%8A%E5%99%A8) - [算法是什么](#%E7%AE%97%E6%B3%95%E6%98%AF%E4%BB%80%E4%B9%88) - [数和表达式](#%E6%95%B0%E5%92%8C%E8%A1%A8%E8%BE%BE%E5%BC%8F) - [变量](#%E5%8F%98%E9%87%8F) - [语句](#%E8%AF%AD%E5%8F%A5) - [获取用户输入](#%E8%8E%B7%E5%8F%96%E7%94%A8%E6%88%B7%E8%BE%93%E5%85%A5) - [函数](#%E5%87%BD%E6%95%B0) - [模块](#%E6%A8%A1%E5%9D%97) - [cmath和复数](#cmath%E5%92%8C%E5%A4%8D%E6%95%B0) - [回到未来](#%E5%9B%9E%E5%88%B0%E6%9C%AA%E6%9D%A5) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第二章 列表和元组](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E4%BA%8C%E7%AB%A0-%E5%88%97%E8%A1%A8%E5%92%8C%E5%85%83%E7%BB%84) - [序列概述](#%E5%BA%8F%E5%88%97%E6%A6%82%E8%BF%B0) - [通用的序列操作](#%E9%80%9A%E7%94%A8%E7%9A%84%E5%BA%8F%E5%88%97%E6%93%8D%E4%BD%9C) - [索引](#%E7%B4%A2%E5%BC%95) - [切片](#%E5%88%87%E7%89%87) - [切片的简写](#%E5%88%87%E7%89%87%E7%9A%84%E7%AE%80%E5%86%99) - [更大的步长](#%E6%9B%B4%E5%A4%A7%E7%9A%84%E6%AD%A5%E9%95%BF) - [序列相加](#%E5%BA%8F%E5%88%97%E7%9B%B8%E5%8A%A0) - [乘法](#%E4%B9%98%E6%B3%95) - [成员资格](#%E6%88%90%E5%91%98%E8%B5%84%E6%A0%BC) - [列表：Python的主力](#%E5%88%97%E8%A1%A8python%E7%9A%84%E4%B8%BB%E5%8A%9B) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第三章 使用字符串](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E4%B8%89%E7%AB%A0-%E4%BD%BF%E7%94%A8%E5%AD%97%E7%AC%A6%E4%B8%B2) - [字符串基本操作](#%E5%AD%97%E7%AC%A6%E4%B8%B2%E5%9F%BA%E6%9C%AC%E6%93%8D%E4%BD%9C) - [设置字符串格式：精简版](#%E8%AE%BE%E7%BD%AE%E5%AD%97%E7%AC%A6%E4%B8%B2%E6%A0%BC%E5%BC%8F%E7%B2%BE%E7%AE%80%E7%89%88) - [设置字符串格式：完整版](#%E8%AE%BE%E7%BD%AE%E5%AD%97%E7%AC%A6%E4%B8%B2%E6%A0%BC%E5%BC%8F%E5%AE%8C%E6%95%B4%E7%89%88) - [替换字段名](#%E6%9B%BF%E6%8D%A2%E5%AD%97%E6%AE%B5%E5%90%8D) - [基本转换](#%E5%9F%BA%E6%9C%AC%E8%BD%AC%E6%8D%A2) - [宽度、精度和千位分隔符](#%E5%AE%BD%E5%BA%A6%E7%B2%BE%E5%BA%A6%E5%92%8C%E5%8D%83%E4%BD%8D%E5%88%86%E9%9A%94%E7%AC%A6) - [符号、对齐和用0填充](#%E7%AC%A6%E5%8F%B7%E5%AF%B9%E9%BD%90%E5%92%8C%E7%94%A80%E5%A1%AB%E5%85%85) - [字符串的方法](#%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%96%B9%E6%B3%95) - [center](#center) - [find](#find) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第四章 当索引行不通时：使用字典](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E5%9B%9B%E7%AB%A0-%E5%BD%93%E7%B4%A2%E5%BC%95%E8%A1%8C%E4%B8%8D%E9%80%9A%E6%97%B6%E4%BD%BF%E7%94%A8%E5%AD%97%E5%85%B8) - [字典的用途](#%E5%AD%97%E5%85%B8%E7%9A%84%E7%94%A8%E9%80%94) - [创建和使用字典](#%E5%88%9B%E5%BB%BA%E5%92%8C%E4%BD%BF%E7%94%A8%E5%AD%97%E5%85%B8) - [函数dict](#%E5%87%BD%E6%95%B0dict) - [基本的字典操作](#%E5%9F%BA%E6%9C%AC%E7%9A%84%E5%AD%97%E5%85%B8%E6%93%8D%E4%BD%9C) - [将字符串格式设置功能用于字典](#%E5%B0%86%E5%AD%97%E7%AC%A6%E4%B8%B2%E6%A0%BC%E5%BC%8F%E8%AE%BE%E7%BD%AE%E5%8A%9F%E8%83%BD%E7%94%A8%E4%BA%8E%E5%AD%97%E5%85%B8) - [字典方法](#%E5%AD%97%E5%85%B8%E6%96%B9%E6%B3%95) - [clear](#clear) - [copy](#copy) - [fromkeys](#fromkeys) - [get](#get) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第五章 条件、循环及其他语句](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E4%BA%94%E7%AB%A0-%E6%9D%A1%E4%BB%B6%E5%BE%AA%E7%8E%AF%E5%8F%8A%E5%85%B6%E4%BB%96%E8%AF%AD%E5%8F%A5) - [再谈print和import](#%E5%86%8D%E8%B0%88print%E5%92%8Cimport) - [使用print打印多个参数](#%E4%BD%BF%E7%94%A8print%E6%89%93%E5%8D%B0%E5%A4%9A%E4%B8%AA%E5%8F%82%E6%95%B0) - [使用import导入模块时重命名](#%E4%BD%BF%E7%94%A8import%E5%AF%BC%E5%85%A5%E6%A8%A1%E5%9D%97%E6%97%B6%E9%87%8D%E5%91%BD%E5%90%8D) - [赋值魔法](#%E8%B5%8B%E5%80%BC%E9%AD%94%E6%B3%95) - [序列解包](#%E5%BA%8F%E5%88%97%E8%A7%A3%E5%8C%85) - [链式赋值](#%E9%93%BE%E5%BC%8F%E8%B5%8B%E5%80%BC) - [增强赋值](#%E5%A2%9E%E5%BC%BA%E8%B5%8B%E5%80%BC) - [代码块：缩进的乐趣](#%E4%BB%A3%E7%A0%81%E5%9D%97%E7%BC%A9%E8%BF%9B%E7%9A%84%E4%B9%90%E8%B6%A3) - [条件和条件语句](#%E6%9D%A1%E4%BB%B6%E5%92%8C%E6%9D%A1%E4%BB%B6%E8%AF%AD%E5%8F%A5) - [这正是布尔值的用武之地](#%E8%BF%99%E6%AD%A3%E6%98%AF%E5%B8%83%E5%B0%94%E5%80%BC%E7%9A%84%E7%94%A8%E6%AD%A6%E4%B9%8B%E5%9C%B0) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第六章 抽象](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E5%85%AD%E7%AB%A0-%E6%8A%BD%E8%B1%A1) - [懒惰是一种美德](#%E6%87%92%E6%83%B0%E6%98%AF%E4%B8%80%E7%A7%8D%E7%BE%8E%E5%BE%B7) - [抽象和结构](#%E6%8A%BD%E8%B1%A1%E5%92%8C%E7%BB%93%E6%9E%84) - [自定义函数](#%E8%87%AA%E5%AE%9A%E4%B9%89%E5%87%BD%E6%95%B0) - [给函数编写文档](#%E7%BB%99%E5%87%BD%E6%95%B0%E7%BC%96%E5%86%99%E6%96%87%E6%A1%A3) - [其实并不是函数的函数](#%E5%85%B6%E5%AE%9E%E5%B9%B6%E4%B8%8D%E6%98%AF%E5%87%BD%E6%95%B0%E7%9A%84%E5%87%BD%E6%95%B0) - [参数魔法](#%E5%8F%82%E6%95%B0%E9%AD%94%E6%B3%95) - [值从哪里来](#%E5%80%BC%E4%BB%8E%E5%93%AA%E9%87%8C%E6%9D%A5) - [我能修改参数吗](#%E6%88%91%E8%83%BD%E4%BF%AE%E6%94%B9%E5%8F%82%E6%95%B0%E5%90%97) - [为何要修改参数](#%E4%B8%BA%E4%BD%95%E8%A6%81%E4%BF%AE%E6%94%B9%E5%8F%82%E6%95%B0) - [如果参数是不可变的](#%E5%A6%82%E6%9E%9C%E5%8F%82%E6%95%B0%E6%98%AF%E4%B8%8D%E5%8F%AF%E5%8F%98%E7%9A%84) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第七章 再谈抽象-面向对象编程](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E4%B8%83%E7%AB%A0-%E5%86%8D%E8%B0%88%E6%8A%BD%E8%B1%A1-%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E7%BC%96%E7%A8%8B) - [对象魔法](#%E5%AF%B9%E8%B1%A1%E9%AD%94%E6%B3%95) - [多态](#%E5%A4%9A%E6%80%81) - [多态和方法](#%E5%A4%9A%E6%80%81%E5%92%8C%E6%96%B9%E6%B3%95) - [封装](#%E5%B0%81%E8%A3%85) - [继承](#%E7%BB%A7%E6%89%BF) - [类](#%E7%B1%BB) - [类到底是什么](#%E7%B1%BB%E5%88%B0%E5%BA%95%E6%98%AF%E4%BB%80%E4%B9%88) - [创建自定义类](#%E5%88%9B%E5%BB%BA%E8%87%AA%E5%AE%9A%E4%B9%89%E7%B1%BB) - [属性、函数和方法](#%E5%B1%9E%E6%80%A7%E5%87%BD%E6%95%B0%E5%92%8C%E6%96%B9%E6%B3%95) - [再谈隐藏](#%E5%86%8D%E8%B0%88%E9%9A%90%E8%97%8F) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第八章 异常](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E5%85%AB%E7%AB%A0-%E5%BC%82%E5%B8%B8) - [异常是什么](#%E5%BC%82%E5%B8%B8%E6%98%AF%E4%BB%80%E4%B9%88) - [让事情沿你指定的轨道出错](#%E8%AE%A9%E4%BA%8B%E6%83%85%E6%B2%BF%E4%BD%A0%E6%8C%87%E5%AE%9A%E7%9A%84%E8%BD%A8%E9%81%93%E5%87%BA%E9%94%99) - [raise语句](#raise%E8%AF%AD%E5%8F%A5) - [自定义的异常类](#%E8%87%AA%E5%AE%9A%E4%B9%89%E7%9A%84%E5%BC%82%E5%B8%B8%E7%B1%BB) - [捕获异常](#%E6%8D%95%E8%8E%B7%E5%BC%82%E5%B8%B8) - [不用提供参数](#%E4%B8%8D%E7%94%A8%E6%8F%90%E4%BE%9B%E5%8F%82%E6%95%B0) - [多个except子句](#%E5%A4%9A%E4%B8%AAexcept%E5%AD%90%E5%8F%A5) - [一箭双雕](#%E4%B8%80%E7%AE%AD%E5%8F%8C%E9%9B%95) - [捕获对象](#%E6%8D%95%E8%8E%B7%E5%AF%B9%E8%B1%A1) - [一网打尽](#%E4%B8%80%E7%BD%91%E6%89%93%E5%B0%BD) -...
**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)* - [Python之旅：第九章 魔法方法、特性和迭代器](#python%E4%B9%8B%E6%97%85%E7%AC%AC%E4%B9%9D%E7%AB%A0-%E9%AD%94%E6%B3%95%E6%96%B9%E6%B3%95%E7%89%B9%E6%80%A7%E5%92%8C%E8%BF%AD%E4%BB%A3%E5%99%A8) - [构造函数](#%E6%9E%84%E9%80%A0%E5%87%BD%E6%95%B0) - [重写普通方法和特殊的构造函数](#%E9%87%8D%E5%86%99%E6%99%AE%E9%80%9A%E6%96%B9%E6%B3%95%E5%92%8C%E7%89%B9%E6%AE%8A%E7%9A%84%E6%9E%84%E9%80%A0%E5%87%BD%E6%95%B0) - [调用未关联的超类构造函数](#%E8%B0%83%E7%94%A8%E6%9C%AA%E5%85%B3%E8%81%94%E7%9A%84%E8%B6%85%E7%B1%BB%E6%9E%84%E9%80%A0%E5%87%BD%E6%95%B0) - [使用函数`super`](#%E4%BD%BF%E7%94%A8%E5%87%BD%E6%95%B0super) - [元素访问](#%E5%85%83%E7%B4%A0%E8%AE%BF%E9%97%AE) - [基本的序列和映射协议](#%E5%9F%BA%E6%9C%AC%E7%9A%84%E5%BA%8F%E5%88%97%E5%92%8C%E6%98%A0%E5%B0%84%E5%8D%8F%E8%AE%AE) - [从`list`、`dict`和`str`派生](#%E4%BB%8Elistdict%E5%92%8Cstr%E6%B4%BE%E7%94%9F) - [特性](#%E7%89%B9%E6%80%A7) - [函数`property`](#%E5%87%BD%E6%95%B0property) - [静态方法和类方法](#%E9%9D%99%E6%80%81%E6%96%B9%E6%B3%95%E5%92%8C%E7%B1%BB%E6%96%B9%E6%B3%95) -...