python - python中如何使用Turtle图形绘制一系列平行线？

Question

我如何在 python 中通过海龟绘制一系列（例如：5）平行线？

def parallel_lines(number):
    #Help me write the body of the function
    #number is the number of lines for drawing

Answer 1

试试这个代码

from turtle import *
#we make an object from class Turtle
alex=Turtle()
def parallel_lines(number):
    #number is number of lines
    with_s=alex.window_width()
    height_s=alex.window_height()
    alex.setheading(90)
    alex.pu()
    #for fill all screen and equall distance below line needed
    alex.setposition(with_s/-2,height_s/-2)
    for i in range(1,number+1):
        alex.pd()
        alex.fd(height_s)
        alex.pu()
        alex.setposition(with_s/-2+i*(with_s/(number-1)),height_s/-2)

parallel_lines(5)

output边缘是 2 行，屏幕是 3 行