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‎Python_practice1.ipynb

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{
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"nbformat": 4,
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"nbformat_minor": 2,
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"metadata": {
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"language_info": {
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"name": "python",
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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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"version": "3.7.6-final"
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},
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"orig_nbformat": 2,
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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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"npconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": 3,
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"kernelspec": {
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"name": "python3",
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"display_name": "Python 3"
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}
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},
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": "The variables before swapping are: 20 35\nThe variables after swapping are: 35 20\n"
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}
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],
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"source": [
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"# Filename: Python_practice1.ipynb\n",
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"#\n",
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"# Summary: 交换两个变量值 / 摄氏温度转为华氏温度 / 求数字中各位数之和 / 判断数字为质数or合数 / 生成随机数 / 删除列表重复项\n",
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"#\n",
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"# Date: 2020/4/1\n",
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"#\n",
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"# author by: 崇森([email protected])\n",
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"\n",
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"\n",
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"# @FullName: swap\n",
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"#\n",
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"# @Brief: 交换变量值\n",
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"#\n",
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"# @Parameter: var_one, var_two\n",
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"#\n",
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"# @Return: var_two, var_one\n",
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"\n",
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"\n",
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"def swap(var_one, var_two):\n",
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" return var_two, var_one\n",
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"\n",
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"\n",
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"variable_one = input(\"Please input the first variable:\")\n",
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"variable_two = input(\"Please input the second variable:\")\n",
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"print(\"The variables before swapping are:\", variable_one, variable_two)\n",
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"variable_one, variable_two = swap(variable_one, variable_two)\n",
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"# variable_one, variable_two = variable_two, variable_one\n",
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"print(\"The variables after swapping are:\", variable_one, variable_two)\n"
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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": 9,
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"metadata": {},
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": "23 converts to Fahrenheit is 73.4\n"
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}
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],
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"source": [
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"# @FullName: cel_to_fah\n",
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"#\n",
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"# @Brief: 摄氏度转华氏度\n",
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"#\n",
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"# @Parameter: 摄氏度\n",
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"#\n",
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"# @Return: 华氏度\n",
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"\n",
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"\n",
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"def cel_to_fah(cel):\n",
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" return cel * 1.8 + 32\n",
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"\n",
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"\n",
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"celsius = eval(input(\"Please input celsius:\"))\n",
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"fahrenheit = cel_to_fah(celsius)\n",
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"print(celsius, \"converts to Fahrenheit is\", fahrenheit)\n",
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""
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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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"output_type": "stream",
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"name": "stdout",
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"text": "23.456: The sum of the individual digits is 20\n"
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}
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],
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"source": [
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"# @FullName: digit_sum\n",
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"#\n",
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"# @Brief: 计算正整数各个位数之和\n",
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"#\n",
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"# @Parameter: 正整数\n",
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"#\n",
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"# @Return: 各位数之和\n",
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"\n",
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"\n",
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"def digit_sum(num):\n",
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" if num >= 10:\n",
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" remainder = num % 10\n",
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" rest = int(num / 10)\n",
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" sum = remainder + digit_sum(rest)\n",
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" else:\n",
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" sum = num\n",
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" return sum\n",
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"\n",
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"\n",
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"# @FullName: num_split\n",
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"#\n",
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"# @Brief: 将实数依据小数点拆分为左右两个正整数\n",
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"#\n",
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"# @Parameter: 数字字符串\n",
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"#\n",
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"# @Return: 拆分后的两个正整数\n",
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"\n",
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"\n",
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"def num_split(str_num):\n",
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" if str_num.count('.') == 1:\n",
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" left = abs(int(str_num.split('.')[0]))\n",
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" right = int(str_num.split('.')[1])\n",
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" return left, right\n",
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" else:\n",
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" return abs(int(str_num)), 0\n",
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"\n",
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"\n",
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"number_str = input(\"Please input a number:\")\n",
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"num_left, num_right = num_split(number_str)\n",
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"sum = digit_sum(num_left)\n",
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"sum += digit_sum(num_right)\n",
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"print(\"%s: The sum of the individual digits is %d\" % (number_str, sum))\n",
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""
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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": 14,
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"metadata": {},
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": "88 is a composite number\n2 * 44 is 88\n"
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}
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],
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"source": [
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"MIN_PRIME_COMPOSITE = 2\n",
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"\n",
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"\n",
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"# @FullName: is_prime\n",
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"#\n",
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"# @Brief: 判断数字为素数or合数\n",
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"#\n",
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"# @Parameter: 实数\n",
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"#\n",
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"# @Return: 0：既不是素数也不是合数 / 1：素数 / else：合数\n",
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"\n",
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"\n",
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"def is_prime(num):\n",
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" if num < MIN_PRIME_COMPOSITE:\n",
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" return 0\n",
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" low_bound = 2\n",
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" up_bound = int(num / 2 + 1)\n",
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" for i in range(low_bound, up_bound):\n",
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" if num % i == 0:\n",
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" return i\n",
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" return 1\n",
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"\n",
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"\n",
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"num_str = input(\"Please input a number:\")\n",
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"if num_str.count('.') >= 1:\n",
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" print(\"%s is neither prime nor composite\" % num_str)\n",
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"else:\n",
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" number = int(num_str)\n",
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" val = is_prime(number)\n",
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" if val == 0:\n",
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" print(\"%d is neither prime nor composite\" % number)\n",
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" elif val == 1:\n",
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" print(\"%d is a prime number\" % number)\n",
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" else:\n",
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" print(\"%d is a composite number\" % number)\n",
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" print(\"%d * %d is %d\" % (val, number / val, number))\n",
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""
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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": 13,
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"metadata": {},
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": "The random number is 6\n"
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}
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],
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"source": [
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"from random import randint\n",
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"min_num = int(input(\"Please input a min number\"))\n",
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"max_num = int(input(\"Please input a max number\"))\n",
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"if min_num > max_num:\n",
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" print(\"Input error!\")\n",
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"else:\n",
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" print(\"The random number is %d\" % randint(min_num, max_num))\n",
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""
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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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"output_type": "stream",
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"name": "stdout",
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"text": "The original list is: ['a', 'b', 'a', 'd', 'd', 'c']\nThe list after removing duplicates is: ['a', 'b', 'd', 'c']\n"
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}
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],
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"source": [
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"# @FullName: remove_list_duplicates\n",
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"#\n",
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"# @Brief: 删除列表重复项\n",
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"#\n",
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"# @Parameter: 原列表\n",
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"#\n",
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"# @Return: 删除重复项后的列表\n",
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"\n",
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"\n",
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"def remove_list_duplicates(ori_list):\n",
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" temp_list = []\n",
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" for element in ori_list:\n",
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" if element not in temp_list:\n",
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" temp_list.append(element)\n",
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" return temp_list\n",
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"\n",
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"\n",
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"original_list = ['a', 'b', 'a', 'd', 'd', 'c']\n",
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"print(\"The original list is:\", original_list)\n",
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"final_list = remove_list_duplicates(original_list)\n",
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"print(\"The list after removing duplicates is:\", final_list)\n",
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"\n",
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"# *=====End File=====* #\n"
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]
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}
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]
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}

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