Python: Turtle 不能调用函数两次

Question

我有一个问题，我正在尝试使用 turtle 模块在 Python (2.7) 中绘制正方形和圆形。

import turtle
def draw_cricle(circle_size):

    boby = turtle.Turtle()

    boby.color("black")
    boby.shape("arrow")

    boby.right(90)
    boby.forward(200)
    boby.left(90)
    boby.back(20)

    boby.circle(circle_size)

def draw_square(forward_dst, right_angle):
    window = turtle.Screen()

    window.bgcolor("red")
    brad = turtle.Turtle()
    brad.shape("circle")
    brad.speed(3)

    brad.forward(forward_dst)
    brad.right(right_angle)
    brad.forward(forward_dst)
    brad.right(right_angle)
    brad.forward(forward_dst)
    brad.right(right_angle)
    brad.forward(forward_dst)
    brad.right(right_angle)
    window.exitonclick()

draw_square(100,90)

draw_cricle(100)

我的问题是我无法在调用 draw_square 函数后调用 draw_circle 函数。

是的，我知道我应该在 draw_square

中使用循环

Answer 1

当运行 window.exitonclick() 来自 draw_square 函数时，您将关闭 window。如果你想使用相同的 window 来绘制正方形和圆形，你应该在这些函数之外定义 window ，否则，你甚至在开始绘制之前就关闭了 window圆.

import turtle


def draw_cricle(circle_size):

    boby = turtle.Turtle()

    boby.color("black")
    boby.shape("arrow")

    boby.right(90)
    boby.forward(200)
    boby.left(90)
    boby.back(20)

    boby.circle(circle_size)

def draw_square(forward_dst, right_angle):

    brad = turtle.Turtle()
    brad.shape("circle")
    brad.speed(3)

    brad.forward(forward_dst)
    brad.right(right_angle)
    brad.forward(forward_dst)
    brad.right(right_angle)
    brad.forward(forward_dst)
    brad.right(right_angle)
    brad.forward(forward_dst)
    brad.right(right_angle)

window = turtle.Screen()
window.bgcolor("red")

draw_square(100,90)
draw_cricle(100)


window.exitonclick()

Python: Turtle 不能调用函数两次

Python: Turtle can't call function twice

python

function

turtle-graphics

pycharm

python-2.7