448 lines
12 KiB
Text
448 lines
12 KiB
Text
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# 人工智能与机器学习-实验1\n",
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"\n",
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"## Part.I Python语言练习\n",
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"\n",
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"|学号 |姓名 |\n",
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"|----------|--------|\n",
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"|***REMOVED***|***REMOVED***|"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 1. 名人名言\n",
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"\n",
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"找一句你钦佩的名人说的名言，将名人的姓名存储在变量`famous_person`中，再将他说的名言存储在变量`message`中，然后如下显示出该名人说了该名言（包括引号）：\n",
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"\n",
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"`xxx once said, \"......\"`"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 42,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Linus Torvalds once said, \"So nvidia, fuck you.\"\n"
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]
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}
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],
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"source": [
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"famous_person=\"Linus Torvalds\"\n",
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"message=\"So nvidia, fuck you.\"\n",
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"nHex = 0xFF\n",
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"print(\"%s once said, \\\"%s\\\"\" %(famous_person, message))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 2. 朋友\n",
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"\n",
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"将一些朋友的姓名存储在一个列表中，并将其命名为`names`。\n",
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"\n",
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"1. 依次显示出列表中所有朋友的姓名；\n",
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"\n",
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"2. 使用`sort()`将列表中的姓名按字典顺序排序后，再显示出排好序的所有朋友的命名；\n",
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"\n",
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"3. 将`\"Albert Einstein\"`添加到你的朋友姓名列表中；\n",
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"\n",
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"4. 显示列表的长度；"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"['Linus Torvalds', 'Richard Stallman', 'Greg Kroah-Hartman']\n",
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"['Greg Kroah-Hartman', 'Linus Torvalds', 'Richard Stallman']\n",
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"['Greg Kroah-Hartman', 'Linus Torvalds', 'Richard Stallman', 'Albert Einstein']\n"
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]
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}
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],
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"source": [
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"names=[\"Linus Torvalds\", \"Richard Stallman\", \"Greg Kroah-Hartman\"]\n",
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"print(names)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"names.sort()\n",
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"print(names)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"names.append(\"Albert Einstein\")\n",
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"print(names)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 6,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"4\n"
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]
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}
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],
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"source": [
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"print(len(names))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 3. 3的倍数\n",
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"\n",
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"创建一个列表，其中包含3~30内能被3 整除的数字；再使用一个`for`循环将这个列表中的数字都打印出来。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 11,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"3 6 9 12 15 18 21 24 27 "
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]
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}
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],
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"source": [
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"list=[]\n",
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"for i in range(3,30):\n",
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" if i%3==0:\n",
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" list.append(i)\n",
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"for i in list:\n",
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" print(i,end=\" \")"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 4. 登录信息\n",
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"\n",
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"创建一个至少包含5 个用户名的列表，且其中一个用户名为`'admin'`。想象你要编写代码，在每位用户登录网站后都打印一条问候消息。遍历用户名列表，并向每位用户打印一条问候消息。如果用户名为`'admin'`，就打印一条特殊的问候消息，如`“Hello admin, would you like to see a status report?”`。否则，打印一条普通的问候消息，如`“Hello Eric, thank you for logging in again”`。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 12,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Hello admin, would you like to see a status report?\n",
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"Hello user1, thank you for logging in again.\n",
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"Hello user2, thank you for logging in again.\n",
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"Hello user3, thank you for logging in again.\n",
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"Hello user4, thank you for logging in again.\n"
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]
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}
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],
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"source": [
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"user=[\"admin\", \"user1\", \"user2\", \"user3\", \"user4\"]\n",
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"for i in user: \n",
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" if i==\"admin\":\n",
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" print(\"Hello admin, would you like to see a status report?\")\n",
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" else:\n",
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" print(\"Hello %s, thank you for logging in again.\" %i)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 5. 升序降序\n",
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"\n",
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"给你一个整数组成的列表`L`，按照下列条件输出：\n",
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"* 若`L`是升序排列的,则输出\"UP\";\n",
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"* 若`L`是降序排列的,则输出\"DOWN\";\n",
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"* 若`L`无序，则输出\"WRONG\"。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 15,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"UP\n",
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"DOWN\n",
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"WRONG\n"
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]
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}
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],
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"source": [
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"up=[1,5,7,9,10]\n",
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"down=[11,9,7,5,3]\n",
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"wrong=[2,4,6,8,5]\n",
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"\n",
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"def order(list:list)->str:\n",
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" if list==sorted(list):\n",
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" return \"UP\"\n",
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" elif list==sorted(list, reverse=True):\n",
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" return \"DOWN\"\n",
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" else:\n",
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" return \"WRONG\"\n",
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"\n",
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"print(order(up))\n",
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"print(order(down))\n",
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"print(order(wrong))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 6. IP地址\n",
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"\n",
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"互联网上的每台计算机都有一个IP，合法的IP格式为：`A.B.C.D`。其中`A`、`B`、`C`、`D`均为[0, 255]中的整数。为了简单起见，我们规定这四个整数中不允许有前导零存在，如001。\n",
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"\n",
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"现在给你一个字符串`s`（`s`不含空白符），请你判断`s`是不是合法IP，若是，输出`Yes`，否则输出`No`。如：s=“202.115.32.24”，则输出Yes；s=“a.11.11.11”, 则输出No。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 34,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Yes; s=\"202.115.32.24\"\n",
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"No\n",
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"No\n"
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]
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}
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],
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"source": [
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"def isIP(s:str)->bool:\n",
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" if len(s.split(\".\"))==4:\n",
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" for i in s.split(\".\"):\n",
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" if i.isdigit() and 0<=int(i)<=255:\n",
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" if(int(i)!=0 and i[0]==\"0\"):\n",
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" return False\n",
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" continue\n",
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" else:\n",
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" return False\n",
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" return True\n",
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" else:\n",
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" return False\n",
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"\n",
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"s=[\"202.115.32.24\",\"002.115.32.24\",\"256.115.32.24\"]\n",
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"for i in s:\n",
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" if(isIP(i)):\n",
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" print(\"Yes; s=\\\"%s\\\"\" %i)\n",
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" else:\n",
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" print(\"No\")"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 7. 三明治\n",
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"\n",
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"创建一个名为`sandwich_orders`的列表，在其中包含各种三明治的名字；\n",
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"\n",
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"再创建一个名为`finished_sandwiches`的空列表。\n",
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"\n",
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"遍历列表`sandwich_orders`，对于其中的每种三明治，都打印一条消息，如I made your tuna sandwich，并将其移到列表`finished_sandwiches`。\n",
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"\n",
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"所有三明治都制作好后，打印一条消息，将这些三明治列出来。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 35,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"I made your chicken sandwich.\n",
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"I made your beef sandwich.\n",
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"I made your tuna sandwich.\n",
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"All sandwiches are made.\n",
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"sandwich_orders: []\n",
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"finished_sandwiches: ['chicken', 'beef', 'tuna']\n"
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]
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}
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],
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"source": [
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"sandwich_orders=[\"tuna\", \"beef\", \"chicken\"]\n",
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"finished_sandwiches=[]\n",
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"while sandwich_orders:\n",
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" buf = sandwich_orders.pop()\n",
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" print(\"I made your %s sandwich.\" %buf)\n",
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" finished_sandwiches.append(buf)\n",
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"print(\"All sandwiches are made.\")\n",
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"print(\"sandwich_orders: %s\" %sandwich_orders)\n",
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"print(\"finished_sandwiches: %s\" %finished_sandwiches)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 8. 城市\n",
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"\n",
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"创建一个名为`cities`的字典，其中将三个城市名用作键；对于每座城市，都创建一个字典，并在其中包含该城市所属的国家、人口约数以及一个有关该城市的事实。在表示每座城市的字典中，应包含`country`、`population`和`fact`等键。将每座城市的名字以及有关它们的信息都打印出来。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 36,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"City: Beijing\n",
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"country: China\n",
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"population: 21500000\n",
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"fact: Capital of China\n",
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"City: Tokyo\n",
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"country: Japan\n",
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"population: 13500000\n",
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"fact: Capital of Japan\n"
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]
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}
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],
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"source": [
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"cities={\"Beijing\":{\"country\":\"China\", \"population\":21500000, \"fact\":\"Capital of China\"}, \\\n",
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" \"Tokyo\":{\"country\":\"Japan\", \"population\":13500000, \"fact\":\"Capital of Japan\"}}\n",
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"for city, info in cities.items():\n",
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" print(\"City: %s\" %city)\n",
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" for k, v in info.items():\n",
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" print(\"%s: %s\" %(k, v))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 9. 时间\n",
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"\n",
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"给你一个时间`t`，`t`是一个字典，共有六个字符串键`(year, month, day, hour, minute, second)`，每个值为数字组成的字符串，如`t = {‘year’:‘2013’, ‘month’:‘9’, ‘day’:‘30’, ‘hour’:‘16’, ‘minute’:‘45’, ‘second’:‘2‘}`。\n",
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"\n",
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"请将其按照以下格式输出：`XXXX-XX-XX XX:XX:XX`。如上例应该输出：`2013-09-30 16:45:02`。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 39,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"2013-09-30 16:45:02\n"
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]
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}
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],
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"source": [
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"t = {\"year\":\"2013\", \"month\":\"9\", \"day\":\"30\", \"hour\":\"16\", \"minute\":\"45\", \"second\":\"2\"}\n",
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"print(\"%s-%02d-%02d %02d:%02d:%02d\" %(t[\"year\"], int(t[\"month\"]), int(t[\"day\"]), int(t[\"hour\"]), int(t[\"minute\"]), int(t[\"second\"])))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### 10. 最喜欢的书\n",
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"\n",
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"编写一个名为`favorite_book()`的函数，其中包含一个名为`title`的形参。这个函数打印一条消息，如One of my favorite books is Alice in Wonderland。调用这个函数，并将一本图书的名称作为实参传递给它。"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 40,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"One of my favorite books is Alice in Wonderland.\n"
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]
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}
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],
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"source": [
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"def favorite_book(title:str)->None:\n",
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" print(\"One of my favorite books is %s.\" %title)\n",
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"\n",
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"favorite_book(\"Alice in Wonderland\")"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.10.4 ('main')",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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||
"codemirror_mode": {
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||
"name": "ipython",
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||
"version": 3
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},
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"file_extension": ".py",
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||
"mimetype": "text/x-python",
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||
"name": "python",
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||
"nbconvert_exporter": "python",
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||
"pygments_lexer": "ipython3",
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||
"version": "3.10.4"
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||
},
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||
"vscode": {
|
||
"interpreter": {
|
||
"hash": "cdd56286faa2ee04874a677dc80784b0c94990d70e3798725c60e428b9bb159e"
|
||
}
|
||
}
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||
},
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||
"nbformat": 4,
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||
"nbformat_minor": 2
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||
}
|