Python:Turtle 不能调用函数两次

Question

我有一个问题，我试图使用turtle模块在Python(2.7)中绘制一个正方形和一个圆形。

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)

我的问题是调用draw_square函数后无法调用draw_circle函数。

是的，我知道我应该在draw_square中使用循环

Answer 1

从 draw_square 函数运行 window.exitonclick() 时，您将关闭窗口。如果您想使用同一个窗口来绘制正方形和圆形，则应该在这些函数之外定义窗口，否则，您甚至在开始绘制圆形之前就关闭了窗口。

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()