Python龟图形填充问题

Question

I'm supposed to draw a building for my Python class, and the fillcolor() function does its job for two of the shapes, but for the last shape, even though I finish the circuit so to speak, it won't fill it with the color I need:

import turtle

def main():
    turtle.setup(900, 900)
    cityscape(-300, -400, 300, 'gray')
    cityscape(0, -400, 300, 'gray')
    building(-300, -100, 'gray')
    turtle.speed(0)

def cityscape(x, y, width, color):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pencolor('gray')
    turtle.fillcolor(color)
    turtle.pendown()
    turtle.begin_fill()
    for count in range(4):
        turtle.forward(width)
        turtle.left(90)
    turtle.end_fill()

def building(x, y, color):
    turtle.penup()
    turtle.goto(x, y)
    turtle.fillcolor(color)
    turtle.pendown()
    turtle.begin_fill()
    turtle.forward(100)
    turtle.left(90)
    turtle.forward(100)
    turtle.right(180)
    turtle.left(90)
    turtle.forward(100)
    turtle.left(90)
    turtle.forward(200)
    turtle.right(90)
    turtle.forward(100)
    turtle.right(90)
    turtle.forward(250)
    turtle.left(90)
    turtle.forward(70)
    turtle.left(90)
    turtle.forward(175)
    turtle.right(90)
    turtle.forward(80)
    turtle.right(90)
    turtle.forward(100)
    turtle.left(90)
    turtle.forward(70)
    turtle.right(90)
    turtle.forward(425)
    turtle.right(90)
    turtle.forward(425)


main()

How can I resolve this?

Answer 1

You left turtle.end_fill() off the end of your building() function. I'd also write main() as follows:

def main():
    turtle.setup(900, 900)
    turtle.speed('fastest')
    cityscape(-300, -400, 300, 'gray')
    cityscape(0, -400, 300, 'gray')
    building(-300, -100, 'gray')
    turtle.mainloop()

Complete code listing with the above fix and some style changes:

from turtle import Screen, Turtle

def main():
    screen = Screen()
    screen.setup(900, 900)

    yertle = Turtle(visible=False)
    yertle.speed('fastest')

    cityscape(yertle, -300, -400, 300, 'gray')
    cityscape(yertle, 0, -400, 300, 'gray')
    building(yertle, -300, -100, 'gray')

    screen.mainloop()

def cityscape(turtle, x, y, width, color):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()

    turtle.color(color)

    turtle.begin_fill()
    for _ in range(4):
        turtle.forward(width)
        turtle.left(90)
    turtle.end_fill()

def building(turtle, x, y, color):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()

    turtle.color(color)

    turtle.begin_fill()
    turtle.forward(100)
    turtle.left(90)
    turtle.forward(100)
    turtle.right(90)
    turtle.forward(100)
    turtle.left(90)
    turtle.forward(200)
    turtle.right(90)
    turtle.forward(100)
    turtle.right(90)
    turtle.forward(250)
    turtle.left(90)
    turtle.forward(70)
    turtle.left(90)
    turtle.forward(175)
    turtle.right(90)
    turtle.forward(80)
    turtle.right(90)
    turtle.forward(100)
    turtle.left(90)
    turtle.forward(70)
    turtle.right(90)
    turtle.forward(425)
    turtle.right(90)
    turtle.forward(425)
    turtle.end_fill()

main()