Python 程序设计基础 嵩天 练习题

叠边三角形
#第一章程序练习2.4-2.5题 方案一
import turtle
turtle.setup(800,600)
turtle.penup()
turtle.fd(-100)
turtle.pendown()
for i in range(3):
    turtle.fd(200)
    turtle.left(120)
    
turtle.right(120)
for i in range(3):
    turtle.fd(200)
    turtle.left(120)
    
turtle.seth(0)
turtle.penup()
turtle.fd(200)
turtle.pendown()

turtle.right(120)
for i in range(3):
    turtle.fd(200)
    turtle.left(120)
    
turtle.done()

#第一章程序练习2.4-2.5题 方案二
import turtle
turtle.setup(800,600)
turtle.penup()
turtle.fd(-150)
turtle.seth(90)
turtle.fd(-150)
turtle.seth(0)
turtle.pendown()
for i in range(3):
    turtle.fd(400)
    turtle.left(120)

turtle.penup()
turtle.fd(200)
turtle.pendown()
turtle.seth(60)
for i in range(3):
    turtle.fd(200)
    turtle.left(120)

turtle.done()