diff --git a/1. Python 安装及基本语法.ipynb b/1. Python 安装及基本语法.ipynb index b9d884d..eb97719 100644 --- a/1. Python 安装及基本语法.ipynb +++ b/1. Python 安装及基本语法.ipynb @@ -2,7 +2,6 @@ "cells": [ { "cell_type": "markdown", - "id": "boxed-account", "metadata": {}, "source": [ "# Python 安装及基本语法" @@ -10,7 +9,6 @@ }, { "cell_type": "markdown", - "id": "equal-nicholas", "metadata": {}, "source": [ "Python 是一种上手简单、功能丰富的编程语言，是数据科学领域首选的可靠工具。通过 Python 你可以迅速解决问题，而不是把精力消耗在复杂的语法与编程细节上，这与本教程的核心思想“简洁”不谋而合。\n", @@ -20,7 +18,6 @@ }, { "cell_type": "markdown", - "id": "suitable-islam", "metadata": {}, "source": [ "## 1.1.1 Python 安装运行" @@ -28,7 +25,6 @@ }, { "cell_type": "markdown", - "id": "located-orientation", "metadata": {}, "source": [ "### 1.1.1.1 下载安装" @@ -36,7 +32,6 @@ }, { "cell_type": "markdown", - "id": "satisfied-contrast", "metadata": {}, "source": [ "- 对于 Windows / Mac 用户，首先在官网 https://www.python.org/downloads/ 下载对应操作系统的 Python3 安装包，然后双击运行安装。\n", @@ -46,7 +41,6 @@ }, { "cell_type": "markdown", - "id": "organic-marshall", "metadata": {}, "source": [ "在安装完成后，打开命令提示符(win + R键，输入cmd回车) / 终端(command + 空格，输入term回车)，执行 python3 -V 命令，若出现对应python版本号则安装成功。" @@ -54,15 +48,13 @@ }, { "cell_type": "markdown", - "id": "advisory-agenda", "metadata": {}, "source": [ - " " + " " ] }, { "cell_type": "markdown", - "id": "reduced-centre", "metadata": {}, "source": [ "### 1.1.1.2 编辑器与解释器\n" @@ -70,7 +62,6 @@ }, { "cell_type": "markdown", - "id": "seventh-television", "metadata": {}, "source": [ "一个 Python 程序要经过“编写”和“运行”两个阶段。\n", @@ -85,7 +76,6 @@ }, { "cell_type": "markdown", - "id": "legislative-quick", "metadata": {}, "source": [ "### 1.1.1.3 第一个Python程序" @@ -93,7 +83,6 @@ }, { "cell_type": "markdown", - "id": "becoming-fleece", "metadata": {}, "source": [ "在成功安装后，我们将尝试编写第一个Python程序。\n", @@ -107,15 +96,13 @@ }, { "cell_type": "markdown", - "id": "other-cosmetic", "metadata": {}, "source": [ - " " + " " ] }, { "cell_type": "markdown", - "id": "extraordinary-crazy", "metadata": {}, "source": [ "下一步我们尝试用解释器运行保存的.py程序。\n", @@ -127,15 +114,13 @@ }, { "cell_type": "markdown", - "id": "essential-verification", "metadata": {}, "source": [ - " " + " " ] }, { "cell_type": "markdown", - "id": "unavailable-bandwidth", "metadata": {}, "source": [ "### 1.1.1.4 交互式环境" @@ -143,7 +128,6 @@ }, { "cell_type": "markdown", - "id": "south-latex", "metadata": {}, "source": [ "相比于其他编程语言，Python的一个特色是交互式环境，为我们提供了可以同时编写运行的编程方式。\n", @@ -161,15 +145,13 @@ }, { "cell_type": "markdown", - "id": "appreciated-encounter", "metadata": {}, "source": [ - " " + " " ] }, { "cell_type": "markdown", - "id": "logical-japanese", "metadata": {}, "source": [ "编写代码之后即刻运行，运行之后还可以继续编辑，省去了不停打开编写保存运行的过程，这便是交互式编程的奇妙之处！而交互式编程带来的便捷不止如此，在数据科学中我们经常要处理较大的数据，整个程序的运行动辄十几分钟。通过交互式编程我们可以一行一行运行程序，同时通过下面的输出内容观察程序的中间运行结果，在出现错误时及时修改代码，从而节省重复运行程序的时间！\n", @@ -179,7 +161,6 @@ }, { "cell_type": "markdown", - "id": "worse-census", "metadata": {}, "source": [ "## 1.1.2 Python 常量与变量" @@ -187,7 +168,6 @@ }, { "cell_type": "markdown", - "id": "healthy-leave", "metadata": {}, "source": [ "可能你现在会产生疑惑，代码中的 print 代表什么意义？括号又是什么作用？为什么 hello world 外面有个双引号？没关系，下面我们就来了解 Python 语法的奥秘。\n", @@ -197,7 +177,6 @@ }, { "cell_type": "markdown", - "id": "independent-effects", "metadata": {}, "source": [ "### 1.1.2.1 常量" @@ -205,7 +184,6 @@ }, { "cell_type": "markdown", - "id": "soviet-architecture", "metadata": {}, "source": [ "常量是编程语言中固定的量，它的值不能改变。例如 2 就表示数字二，不能被修改表示其他值。Python 中的常量包括数字，字符串，逻辑值三种。\n", @@ -220,7 +198,6 @@ { "cell_type": "code", "execution_count": 6, - "id": "extraordinary-projection", "metadata": {}, "outputs": [ { @@ -242,7 +219,6 @@ { "cell_type": "code", "execution_count": 7, - "id": "treated-repeat", "metadata": {}, "outputs": [ { @@ -264,7 +240,6 @@ { "cell_type": "code", "execution_count": 8, - "id": "acute-rescue", "metadata": {}, "outputs": [ { @@ -285,7 +260,6 @@ { "cell_type": "code", "execution_count": 10, - "id": "turkish-clause", "metadata": {}, "outputs": [ { @@ -308,7 +282,6 @@ { "cell_type": "code", "execution_count": 24, - "id": "reflected-optics", "metadata": {}, "outputs": [ { @@ -329,7 +302,6 @@ }, { "cell_type": "markdown", - "id": "medium-education", "metadata": {}, "source": [ "### 1.1.2.2 变量" @@ -337,7 +309,6 @@ }, { "cell_type": "markdown", - "id": "focal-assembly", "metadata": {}, "source": [ "与常量相反，变量可以存储不同的值以表示不同的内容，并且它的值可以被更改。变量通过赋值符号 = 创建，例如variable = 1。\n", @@ -348,7 +319,6 @@ { "cell_type": "code", "execution_count": 14, - "id": "final-detection", "metadata": {}, "outputs": [ { @@ -372,7 +342,6 @@ { "cell_type": "code", "execution_count": 15, - "id": "valuable-database", "metadata": {}, "outputs": [ { @@ -396,7 +365,6 @@ { "cell_type": "code", "execution_count": 19, - "id": "handy-connection", "metadata": {}, "outputs": [ { @@ -417,7 +385,6 @@ { "cell_type": "code", "execution_count": 20, - "id": "transsexual-theta", "metadata": {}, "outputs": [ { @@ -437,7 +404,6 @@ }, { "cell_type": "markdown", - "id": "elder-family", "metadata": {}, "source": [ "## 1.1.3 Python 运算符与函数" @@ -445,7 +411,6 @@ }, { "cell_type": "markdown", - "id": "sized-morocco", "metadata": {}, "source": [ "学习了常量与变量之后，我们可以在Python中表示一些数值或字符串，然而要想解决更复杂的问题，我们需要了解如何对这些常量与变量进行操作。\n", @@ -455,7 +420,6 @@ }, { "cell_type": "markdown", - "id": "parliamentary-vietnamese", "metadata": {}, "source": [ "### 1.1.3.1 运算符" @@ -463,7 +427,6 @@ }, { "cell_type": "markdown", - "id": "flexible-recipient", "metadata": {}, "source": [ "运算符有以下几种，表示运算操作/逻辑操作/位运算操作\n", @@ -504,7 +467,6 @@ }, { "cell_type": "markdown", - "id": "prime-horror", "metadata": {}, "source": [ "> 问题：给你任意五个整数和一个目标值target，找到这五个整数中和为target的那两个整数。\n", @@ -519,7 +481,6 @@ { "cell_type": "code", "execution_count": 36, - "id": "electronic-james", "metadata": {}, "outputs": [ { @@ -545,7 +506,6 @@ { "cell_type": "code", "execution_count": 37, - "id": "twenty-compression", "metadata": {}, "outputs": [ { @@ -568,7 +528,6 @@ { "cell_type": "code", "execution_count": 38, - "id": "institutional-airplane", "metadata": {}, "outputs": [ { @@ -591,7 +550,6 @@ { "cell_type": "code", "execution_count": 39, - "id": "atlantic-ghost", "metadata": {}, "outputs": [ { @@ -611,7 +569,6 @@ }, { "cell_type": "markdown", - "id": "dirty-trash", "metadata": {}, "source": [ "### 1.1.3.2 函数" @@ -619,7 +576,6 @@ }, { "cell_type": "markdown", - "id": "failing-fitness", "metadata": {}, "source": [ "在上述过程中，下列代码被重复多次书写，这时我们可以使用函数减少代码冗余。函数是一种可复用的部件，用于定义更加复杂的操作以减少代码冗余。\n", @@ -633,7 +589,6 @@ }, { "cell_type": "markdown", - "id": "dried-preliminary", "metadata": {}, "source": [ "函数通过 def 关键字定义，函数的输入由函数名后括号内 参数 定义，函数的结果由 return 关键字定义。\n", @@ -647,7 +602,6 @@ { "cell_type": "code", "execution_count": 62, - "id": "athletic-mobility", "metadata": {}, "outputs": [ { @@ -671,7 +625,6 @@ { "cell_type": "code", "execution_count": 63, - "id": "affiliated-tackle", "metadata": {}, "outputs": [ { @@ -694,7 +647,6 @@ }, { "cell_type": "markdown", - "id": "front-theorem", "metadata": {}, "source": [ "下面我们尝试定义一个函数减少之前代码的冗余。" @@ -703,7 +655,6 @@ { "cell_type": "code", "execution_count": 65, - "id": "intellectual-beaver", "metadata": {}, "outputs": [], "source": [ @@ -719,7 +670,6 @@ }, { "cell_type": "markdown", - "id": "south-means", "metadata": {}, "source": [ "Python的一大语法特点是缩进敏感，这里第 5，6，7 行距离开头有 1个TAB / 4个空格 的距离并不只是为了美观，而是为了说明第 5,6,7 行是函数的内容。相比下面 C++ 函数用花括号的表示方法，相信你可以在这个角度感受 Python 的简洁。 \n", @@ -737,7 +687,6 @@ { "cell_type": "code", "execution_count": 66, - "id": "intermediate-developer", "metadata": {}, "outputs": [ { @@ -762,7 +711,6 @@ }, { "cell_type": "markdown", - "id": "earlier-thirty", "metadata": {}, "source": [ "通过引入函数，上面的小例子变得更加简洁。然而我们发现无论测试哪两个数字的和与target一致，target的值是始终不变的。我们可以通过引入 局部变量 与 全局变量 简化函数。\n", @@ -778,7 +726,6 @@ { "cell_type": "code", "execution_count": 67, - "id": "afraid-oasis", "metadata": {}, "outputs": [ { @@ -802,7 +749,6 @@ { "cell_type": "code", "execution_count": 68, - "id": "prostate-dressing", "metadata": {}, "outputs": [], "source": [ @@ -818,7 +764,6 @@ { "cell_type": "code", "execution_count": 71, - "id": "imperial-heaven", "metadata": {}, "outputs": [ { @@ -841,7 +786,6 @@ }, { "cell_type": "markdown", - "id": "conscious-slave", "metadata": {}, "source": [ "通过 全局变量 的方法，我们的函数变得更加简洁了。" @@ -849,7 +793,6 @@ }, { "cell_type": "markdown", - "id": "opening-story", "metadata": {}, "source": [ "## 1.1.4 Python 控制流" @@ -857,7 +800,6 @@ }, { "cell_type": "markdown", - "id": "humanitarian-deployment", "metadata": {}, "source": [ "通过控制符与函数，我们可以操作变量完成简单的任务。然而本质上我们还在把 Python 当作一个计算器使用，而不是一个可以实现自动化的编程语言，每行代码按照自上而下的顺序依次执行。通过控制流，我们可以让程序自动判断逻辑，自动跳转到某个位置，从而实现自动控制。\n", @@ -875,7 +817,6 @@ }, { "cell_type": "markdown", - "id": "third-background", "metadata": {}, "source": [ "### 1.1.4.1 while 循环语句\n", @@ -891,7 +832,6 @@ { "cell_type": "code", "execution_count": 76, - "id": "unusual-preference", "metadata": {}, "outputs": [ { @@ -917,7 +857,6 @@ }, { "cell_type": "markdown", - "id": "capital-beach", "metadata": {}, "source": [ "在上面的代码中，首先我们定义变量 a 的值为 0，之后每次迭代使 a 的值增加 1，并输出当前 a 的值。\n", @@ -927,7 +866,6 @@ }, { "cell_type": "markdown", - "id": "revolutionary-execution", "metadata": {}, "source": [ "### 1.1.4.2 for 循环语句\n", @@ -949,7 +887,6 @@ { "cell_type": "code", "execution_count": 77, - "id": "intellectual-prisoner", "metadata": {}, "outputs": [ { @@ -973,7 +910,6 @@ }, { "cell_type": "markdown", - "id": "funny-boost", "metadata": {}, "source": [ "考虑之前的求和问题，在最坏的情况下，我们需要把所有元素两两求和才能得到答案。在5个元素时，我们最多需要对比10次，也就是重复写10次 check_sum 函数。但在有100个元素时，我们需要重复写4950次！因此这时我们用循环进行简化：" @@ -982,7 +918,6 @@ { "cell_type": "code", "execution_count": 81, - "id": "romance-deployment", "metadata": {}, "outputs": [ { @@ -1028,7 +963,6 @@ }, { "cell_type": "markdown", - "id": "nasty-district", "metadata": {}, "source": [ "在这个例子中，我们可以看到循环是可以嵌套的，在循环的每一次迭代中开启一个新的循环。外层的 for a in [2,3,7,11,15] 按照顺序选择第 1 个元素，内层的 for b in [2,3,7,11,15] 按照顺序选择第 2 个元素，每次迭代输出两个值以及是否与 target 相等。\n", @@ -1038,7 +972,6 @@ }, { "cell_type": "markdown", - "id": "fluid-shelf", "metadata": {}, "source": [ "### 1.1.4.3 if-else 逻辑语句\n", @@ -1055,7 +988,6 @@ }, { "cell_type": "markdown", - "id": "favorite-exploration", "metadata": {}, "source": [ "虽然通过 for-in 不需要写很长代码，然而我们还需要从输出结果中一个个找。通过 if-else 逻辑语句，我们可以让程序真正的实现自动化！\n", @@ -1066,7 +998,6 @@ { "cell_type": "code", "execution_count": 85, - "id": "fixed-holder", "metadata": {}, "outputs": [ { @@ -1092,7 +1023,6 @@ }, { "cell_type": "markdown", - "id": "variable-butterfly", "metadata": {}, "source": [ "通过 if-else 逻辑语句，我们仅输出求和等于 target 的两个元素，不再需要从输出结果中逐个查找。" @@ -1100,7 +1030,6 @@ }, { "cell_type": "markdown", - "id": "cooked-shuttle", "metadata": {}, "source": [ "### 1.1.4.4 break 停止语句" @@ -1108,7 +1037,6 @@ }, { "cell_type": "markdown", - "id": "bizarre-prerequisite", "metadata": {}, "source": [ "break 停止语句用于停止当前的循环。在上面的例子中，我们仅输出 1 种顺序即可，可以添加 break 停止语句在找到符合条件的两个元素后停止。\n", @@ -1119,7 +1047,6 @@ { "cell_type": "code", "execution_count": 87, - "id": "worthy-salmon", "metadata": {}, "outputs": [ { @@ -1151,7 +1078,6 @@ }, { "cell_type": "markdown", - "id": "objective-blackjack", "metadata": {}, "source": [ "### 1.1.4.5 continue 继续语句" @@ -1159,7 +1085,6 @@ }, { "cell_type": "markdown", - "id": "acoustic-closer", "metadata": {}, "source": [ "continue 语句用于停止当前循环并继续执行循环到下一个迭代，下面我们用一个例子展示 continue 的用法。" @@ -1168,7 +1093,6 @@ { "cell_type": "code", "execution_count": 89, - "id": "hearing-history", "metadata": {}, "outputs": [ { @@ -1193,7 +1117,6 @@ }, { "cell_type": "markdown", - "id": "built-enclosure", "metadata": {}, "source": [ "## 1.1.5 练习" @@ -1201,7 +1124,6 @@ }, { "cell_type": "markdown", - "id": "anticipated-rogers", "metadata": {}, "source": [ "### 1.1.5.1 练习一" @@ -1209,7 +1131,6 @@ }, { "cell_type": "markdown", - "id": "former-peeing", "metadata": {}, "source": [ "> 按规定，某种电子元件使用寿命超过 1000 小时为一级品。已知某一大批产品的一级品率为 0.2，现在从中随机地抽查 20 只。使用 Python 计算 20 只元件中恰好有 k 只 (k=0,1,...,20) 为一级品的概率为？" @@ -1217,7 +1138,6 @@ }, { "cell_type": "markdown", - "id": "superb-antarctica", "metadata": {}, "source": [ "根据二项分布公式，所求的概率为：\n", @@ -1231,7 +1151,6 @@ { "cell_type": "code", "execution_count": 108, - "id": "clinical-square", "metadata": {}, "outputs": [], "source": [ @@ -1247,7 +1166,6 @@ { "cell_type": "code", "execution_count": 110, - "id": "vulnerable-publicity", "metadata": {}, "outputs": [], "source": [ @@ -1264,7 +1182,6 @@ { "cell_type": "code", "execution_count": 117, - "id": "certain-gentleman", "metadata": {}, "outputs": [ { @@ -1305,22 +1222,16 @@ } ], "metadata": { + "interpreter": { + "hash": "aee8b7b246df8f9039afb4144a1f6fd8d2ca17a180786b69acc140d282b71a49" + }, "kernelspec": { - "display_name": "Python 3", - "language": "python", + "display_name": "Python 3.9.2 64-bit", "name": "python3" }, "language_info": { - "codemirror_mode": { - "name": "ipython", - "version": 3 - }, - "file_extension": ".py", - "mimetype": "text/x-python", "name": "python", - "nbconvert_exporter": "python", - "pygments_lexer": "ipython3", - "version": "3.9.2" + "version": "" }, "toc": { "base_numbering": 1, @@ -1338,4 +1249,4 @@ }, "nbformat": 4, "nbformat_minor": 5 -} +} \ No newline at end of file diff --git a/4. Python 文件与模块.ipynb b/4. Python 文件与模块.ipynb index 9c14d64..110d2e9 100644 --- a/4. Python 文件与模块.ipynb +++ b/4. Python 文件与模块.ipynb @@ -2,7 +2,6 @@ "cells": [ { "cell_type": "markdown", - "id": "0e7782b2", "metadata": {}, "source": [ "# Python 文件与模块" @@ -10,7 +9,6 @@ }, { "cell_type": "markdown", - "id": "e76c313b", "metadata": {}, "source": [ "## 1.4.1 文件" @@ -18,7 +16,6 @@ }, { "cell_type": "markdown", - "id": "0b7db359", "metadata": {}, "source": [ "经过几百万年的演化，人类进化出了其他动物没有的“长期记忆”，进而拥有了语言、文化甚至发展出文明，走上了一条未曾设想的道路。在人类大脑中，“短期记忆”由海马体负责，“长期记忆”则由大脑皮层中的额叶负责；在计算机中也同样存在长短期记忆，短期记忆由程序中的变量负责，长期记忆则交给电脑中的文件系统。" @@ -26,7 +23,6 @@ }, { "cell_type": "markdown", - "id": "1d652ca4", "metadata": {}, "source": [ "### 1.4.1.1 Open 函数" @@ -34,7 +30,6 @@ }, { "cell_type": "markdown", - "id": "3cc3d3af", "metadata": {}, "source": [ "Python open( ) 方法用于打开一个文件，并返回文件对象，在对文件进行处理过程都需要使用到这个函数。" @@ -42,17 +37,15 @@ }, { "cell_type": "markdown", - "id": "9d0e9846", "metadata": {}, "source": [ "> 为了测试 python 中的文件操作，我们先通过命令行在当前目录保存一个内容为 “hello world!” 的 test.txt 文件。\n", "\n", - " " + " " ] }, { "cell_type": "markdown", - "id": "1509a325", "metadata": {}, "source": [ "open(file, mode) 函数主要有 file 和 mode 两个参数，其中 file 为需要读写文件的路径。mode 为读取文件时的模式，常用的模式有以下几个：\n", @@ -68,7 +61,6 @@ { "cell_type": "code", "execution_count": 1, - "id": "661dc70a", "metadata": {}, "outputs": [ { @@ -86,7 +78,6 @@ }, { "cell_type": "markdown", - "id": "32cf4402", "metadata": {}, "source": [ "### 1.4.1.2 文件对象" @@ -94,7 +85,6 @@ }, { "cell_type": "markdown", - "id": "a8b4deb3", "metadata": {}, "source": [ "open 函数会返回一个 文件对象。在进行文件操作前，我们首先需要了解文件对象提供了哪些常用的方法：\n", @@ -111,7 +101,6 @@ }, { "cell_type": "markdown", - "id": "7420694e", "metadata": {}, "source": [ "下面我们通过实例学习这几种方法：" @@ -120,7 +109,6 @@ { "cell_type": "code", "execution_count": 2, - "id": "6de241f1", "metadata": {}, "outputs": [ { @@ -142,7 +130,6 @@ { "cell_type": "code", "execution_count": 3, - "id": "a972b570", "metadata": {}, "outputs": [ { @@ -161,7 +148,6 @@ }, { "cell_type": "markdown", - "id": "34a5ace0", "metadata": {}, "source": [ "我们发现上面的代码竟然什么也没输出，这是为什么？\n", @@ -172,7 +158,6 @@ { "cell_type": "code", "execution_count": 4, - "id": "cf96733e", "metadata": {}, "outputs": [ { @@ -195,7 +180,6 @@ }, { "cell_type": "markdown", - "id": "7d50ca1b", "metadata": {}, "source": [ "因此在操作文件时，我们一定要注意每次操作结束后，及时通过 close( ) 方法关闭文件。" @@ -204,7 +188,6 @@ { "cell_type": "code", "execution_count": 5, - "id": "d7851cf0", "metadata": {}, "outputs": [], "source": [ @@ -220,15 +203,13 @@ }, { "cell_type": "markdown", - "id": "f111f706", "metadata": {}, "source": [ - " " + " " ] }, { "cell_type": "markdown", - "id": "b101985e", "metadata": {}, "source": [ "需要注意在上述操作中，w 模式会覆盖之前的文件。如果你想在文件后面追加内容，可以使用 a 模式操作。" @@ -237,7 +218,6 @@ { "cell_type": "code", "execution_count": 6, - "id": "59b7a526", "metadata": {}, "outputs": [], "source": [ @@ -253,15 +233,13 @@ }, { "cell_type": "markdown", - "id": "9f972ac7", "metadata": {}, "source": [ - " " + " " ] }, { "cell_type": "markdown", - "id": "03ece181", "metadata": {}, "source": [ "## 1.4.2 模块" @@ -269,7 +247,6 @@ }, { "cell_type": "markdown", - "id": "cfe62671", "metadata": {}, "source": [ "在普罗米修斯为人类带来火种后，人类制造出了各种各样的工具。工具的产生大大提高了人类的生产力，使人类从石器时代步入铁器时代、蒸汽时代以及现在的信息时代。\n", @@ -279,7 +256,6 @@ }, { "cell_type": "markdown", - "id": "f1a6d448", "metadata": {}, "source": [ "编写模块的方式有很多，其中最简单的模块就是创建一个包含很多函数、变量以及类并以 .py 为后缀的文件。下面我们把上一节中实现的 class 类保存在 student.py 文件中：" @@ -287,15 +263,13 @@ }, { "cell_type": "markdown", - "id": "5e8f9a48", "metadata": {}, "source": [ - " " + " " ] }, { "cell_type": "markdown", - "id": "ea559988", "metadata": {}, "source": [ "使用 import 关键字可以把一个模块引入到一个程序来使用它的功能。记得在上一节中我们说过一个程序也可以是一个对象，这时 student.py 程序就成了一个对象，而里面的 student 类便成了它的对象变量。" @@ -304,7 +278,6 @@ { "cell_type": "code", "execution_count": 7, - "id": "96ccfcc6", "metadata": {}, "outputs": [], "source": [ @@ -314,7 +287,6 @@ { "cell_type": "code", "execution_count": 8, - "id": "09379a79", "metadata": {}, "outputs": [ { @@ -332,7 +304,6 @@ }, { "cell_type": "markdown", - "id": "4ead1338", "metadata": {}, "source": [ "通过 student.py 这个模块，我们不需要重复编写就可以在任何程序中使用 student 类！正是因为有了模块，才使得数据科学中复杂的算法与模型可以封装到模块中，用户只需要使用模块中定义好的函数与类。" @@ -340,7 +311,6 @@ }, { "cell_type": "markdown", - "id": "265da85c", "metadata": {}, "source": [ "当我们只需要模块中的几个函数或类时，也可以采用 from model_name import xxx 的写法导入指定部分：" @@ -349,7 +319,6 @@ { "cell_type": "code", "execution_count": 9, - "id": "2c30c2b8", "metadata": {}, "outputs": [ { @@ -370,7 +339,6 @@ }, { "cell_type": "markdown", - "id": "27c50efb", "metadata": {}, "source": [ "在 Python 中内置了很多标准模块，例如用于数学操作的 math 模块与处理时间的 time 模块：" @@ -379,7 +347,6 @@ { "cell_type": "code", "execution_count": 10, - "id": "f11f5959", "metadata": {}, "outputs": [ { @@ -399,7 +366,6 @@ { "cell_type": "code", "execution_count": 11, - "id": "ee6f806f", "metadata": {}, "outputs": [ { @@ -421,7 +387,6 @@ }, { "cell_type": "markdown", - "id": "49799951", "metadata": {}, "source": [ "除此之外，Python 还有很多标准库值得我们去探索。例如 re 库可以实现字符串正则表达式的匹配，random 用来生成随机数，urllib 用来访问互联网……" @@ -429,7 +394,6 @@ }, { "cell_type": "markdown", - "id": "23ac88a6", "metadata": {}, "source": [ "## 1.4.3 练习" @@ -437,7 +401,6 @@ }, { "cell_type": "markdown", - "id": "5b052280", "metadata": {}, "source": [ "### 1.4.3.1 学生信息本地存储" @@ -445,7 +408,6 @@ }, { "cell_type": "markdown", - "id": "db815ccf", "metadata": {}, "source": [ "> 之前我们实现了学生信息的“增删查改”功能，现在希望通过文件系统保存学生的信息，每次打开程序时可以载入，关闭程序时可以保存。" @@ -453,7 +415,6 @@ }, { "cell_type": "markdown", - "id": "53166325", "metadata": {}, "source": [ "### 1.4.3.2 Python 之蝉" @@ -461,7 +422,6 @@ }, { "cell_type": "markdown", - "id": "dc7e6e64", "metadata": {}, "source": [ "
\n", @@ -478,7 +438,6 @@ { "cell_type": "code", "execution_count": 12, - "id": "9b0d40db", "metadata": { "scrolled": false }, @@ -517,22 +476,16 @@ } ], "metadata": { + "interpreter": { + "hash": "aee8b7b246df8f9039afb4144a1f6fd8d2ca17a180786b69acc140d282b71a49" + }, "kernelspec": { - "display_name": "Python 3", - "language": "python", + "display_name": "Python 3.9.2 64-bit", "name": "python3" }, "language_info": { - "codemirror_mode": { - "name": "ipython", - "version": 3 - }, - "file_extension": ".py", - "mimetype": "text/x-python", "name": "python", - "nbconvert_exporter": "python", - "pygments_lexer": "ipython3", - "version": "3.9.2" + "version": "" }, "toc": { "base_numbering": 1, @@ -550,4 +503,4 @@ }, "nbformat": 4, "nbformat_minor": 5 -} +} \ No newline at end of file diff --git a/README.md b/README.md index 54de5e8..e83d5dd 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,2 @@ -# learn-python-the-smart-way -聪明方法学Python，简明且系统的 Python 入门教程。 +# 聪明办法学Python + diff --git a/src/fig11.png b/src/fig11.png new file mode 100644 index 0000000..9e0cece Binary files /dev/null and b/src/fig11.png differ diff --git a/src/fig12.png b/src/fig12.png new file mode 100644 index 0000000..2a3858f Binary files /dev/null and b/src/fig12.png differ diff --git a/src/fig13.png b/src/fig13.png new file mode 100644 index 0000000..55ab208 Binary files /dev/null and b/src/fig13.png differ diff --git a/src/fig14.png b/src/fig14.png new file mode 100644 index 0000000..e08efae Binary files /dev/null and b/src/fig14.png differ diff --git a/src/fig41.png b/src/fig41.png new file mode 100644 index 0000000..d4788d7 Binary files /dev/null and b/src/fig41.png differ diff --git a/src/fig42.png b/src/fig42.png new file mode 100644 index 0000000..0901357 Binary files /dev/null and b/src/fig42.png differ diff --git a/src/fig43.png b/src/fig43.png new file mode 100644 index 0000000..289c5be Binary files /dev/null and b/src/fig43.png differ diff --git a/src/fig44.png b/src/fig44.png new file mode 100644 index 0000000..0bb333f Binary files /dev/null and b/src/fig44.png differ