chapter1

2019-11-08 02:14:17

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#!/usr/bin/env python3# -*- coding: utf-8 -*-"""Created on Sun Feb 19 19:42:48 2017@author: jevon"""# 1.1PRint ("Welcome to Python")print ("Welcome to Computer Science")print ("Programming is fun")# 1.2print ("Welcome to Python")print ("Welcome to Python")print ("Welcome to Python")print ("Welcome to Python")print ("Welcome to Python")# 1.3print('''FFFFFFF U U NN NNFF U U NNN NNFFFFFFF U U NN N NNFF U U NN N NNFF UUU NN NNN''')# 1.4print('''a a^2 a^31 1 12 4 83 9 274 16 64''')# 1.5print((9.5 * 4.5 - 2.5 * 3) / (45.5 - 3.5))# 1.6print(1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9)# 1.7print(4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11))print(4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + 1/13 - 1/15))# 1.8radius = 5.5area = radius * radius * 3.14perimeter = 2 * radius * 3.14print (area)print (perimeter)# 1.9width = 4.5height = 7.9area = width * heightprint(area)# 1.10velocity = (14 / 1.6) / (45.5 / 60)print (velocity)# 1.11curPopulation = 312032486yearSeconds = 365 * 24 * 60 * 60birthPerYear = yearSeconds // 7deathPerYear = yearSeconds // 13immiperYear = yearSeconds // 45fiveYearPopulationAdd = 5 * (birthPerYear + immiPerYear - deathPerYear)print (curPopulation + fiveYearPopulationAdd)# 1.12import turtleturtle.home()turtle.penup()turtle.goto(-50,0)turtle.pendown()turtle.setheading(0)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.penup()turtle.goto(-50,-50)turtle.pendown()turtle.setheading(0)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.penup()turtle.goto(0,-50)turtle.pendown()turtle.setheading(0)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.penup()turtle.goto(0,0)turtle.pendown()turtle.setheading(0)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.left(90)turtle.forward(50)turtle.done()# 1.13import turtleturtle.penup()turtle.goto(-200,0)turtle.pendown()turtle.setheading(0)turtle.forward(400)turtle.penup()turtle.goto(0, 200)turtle.pendown()turtle.setheading(270)turtle.forward(400)turtle.done()# 1.14import turtleturtle.right(60)turtle.forward(100)turtle.right(120)turtle.forward(100)turtle.right(120)turtle.forward(100)turtle.done()# 1.15import turtleturtle.right(60)turtle.forward(100)turtle.right(120)turtle.forward(100)turtle.right(120)turtle.forward(100)turtle.forward(100)turtle.left(120)turtle.forward(100)turtle.left(120)turtle.forward(100)turtle.done()# 1.16import turtleturtle.penup()turtle.goto(-50, 0)turtle.pendown()turtle.circle(50)turtle.penup()turtle.goto(-50, -100)turtle.pendown()turtle.circle(50)turtle.penup()turtle.goto(50, 0)turtle.pendown()turtle.circle(50)turtle.penup()turtle.goto(50, -100)turtle.pendown()turtle.circle(50)turtle.done()# 1.17import turtleturtle.penup()turtle.goto(-39, 48)turtle.write("(-39, 48)")turtle.pendown()turtle.goto(50, -50)turtle.write("(50, -50)")turtle.hideturtle()turtle.done()# 1.18import turtleturtle.penup()turtle.goto(0, 100)turtle.pendown()turtle.setheading(288)turtle.forward(220)turtle.right(180 - 36)turtle.forward(220)turtle.right(180 - 36)turtle.forward(220)turtle.right(180 - 36)turtle.forward(220)turtle.right(180 - 36)turtle.forward(220)turtle.done()# 1.19import turtleturtle.penup()turtle.goto(40, -69.28)turtle.pendown()turtle.goto(-40, -69.28)turtle.goto(-80, -9.8)turtle.goto(-40, 69)turtle.goto(40, 69)turtle.goto(80, 0)turtle.goto(40, -69.28)turtle.hideturtle()turtle.done()# 1.20import turtleturtle.penup()turtle.goto(-50, 0)turtle.pendown()turtle.forward(100)turtle.right(135)turtle.forward(40)turtle.right(45)turtle.forward(100)turtle.right(135)turtle.forward(40)turtle.penup()turtle.goto(-50, 50)turtle.pendown()turtle.setheading(0)turtle.forward(100)turtle.setheading(270)turtle.forward(50)turtle.penup()turtle.setheading(90)turtle.forward(50)turtle.pendown()turtle.setheading(180 + 45)turtle.forward(40)turtle.setheading(270)turtle.forward(50)turtle.penup()turtle.setheading(90)turtle.forward(50)turtle.pendown()turtle.setheading(180)turtle.forward(100)turtle.setheading(270)turtle.forward(50)turtle.penup()turtle.setheading(90)turtle.forward(50)turtle.pendown()turtle.setheading(45)turtle.forward(40)turtle.setheading(270)turtle.forward(50)turtle.penup()turtle.setheading(90)turtle.forward(50)turtle.pendown()turtle.hideturtle()turtle.done()# 1.21import turtleturtle.penup()turtle.home()turtle.pendown()turtle.goto(0, 80)turtle.penup()turtle.home()turtle.pendown()turtle.goto(60, 0)turtle.penup()turtle.home()turtle.pendown()turtle.goto(-38, 2)turtle.penup()turtle.penup()turtle.goto(0, -100)turtle.pendown()turtle.write(''' 69:15:00''')turtle.circle(100, 90)turtle.write('''3 ''')turtle.circle(100, 90)turtle.write('''12''')turtle.circle(100, 90)turtle.write(''' 9''')turtle.circle(100, 90)turtle.hideturtle()turtle.done()

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