Question

我的老师希望我使用turtle用for语句创建一个平面（图形平面）。我无法理解，所以我想知道是否有人可以为我提供代码。

#my start of code
import turtle
wn = turtle.Screen()
t = turtle.Turtle()

Answer 1

也许这个例子会有所帮助。仅仅通过阅读代码来学习编程是很难的，你需要进行实验：将它拉开＆amp;把它重新组合起来，直到你明白所有不同的东西在做什么。所以玩代码，尝试修改各种事情，看看会发生什么。

#! /usr/bin/env python

''' Draw a squared grid filling the visible portion of the Turtle window
    From http://stackoverflow.com/q/29943686/4014959
    Written by PM 2Ring 2015.04.30
'''

import turtle

def draw_lines(current, num, length, delta):
    for i in range(num):
        turtle.up()
        turtle.goto(current)
        turtle.down()
        turtle.forward(length)
        current += delta

def draw_grid(step):
    cols = turtle.window_width() // step
    rows = turtle.window_height() // step
    mx, my = cols * step, rows * step
    origin = turtle.Vec2D(-mx // 2, -my // 2)

    #Horizontals
    delta = turtle.Vec2D(0, step)
    draw_lines(origin, rows + 1, mx, delta)

    #Verticals
    turtle.left(90)
    delta = turtle.Vec2D(step, 0)
    draw_lines(origin, cols + 1, my, delta)

def main():
    turtle.setup(width=0.8, height=0.8)
    turtle.hideturtle()
    turtle.speed(0)

    draw_grid(25)

    #Wait for the window to be closed
    turtle.done()


if __name__ == '__main__':
    main()

如何使用乌龟和语句创建飞机？

1 个答案: