仅更改 Python 海龟中的填充或线条颜色

Question

我想用键更改线条或填充颜色，但不能同时更改两者。我试过在逗号前加一个虚拟词，但没用。

import turtle
from turtle import Turtle, Screen

screen = Screen()

PenWidth = int(input("Enter your Penwidth"))
jack = Turtle("turtle")
jack.color("red", "green")
jack.pensize(PenWidth)
jack.speed(0)

 
def blueLine():
    jack.color("blue")
def blueFill():
    jack.color("blue")
def up():
    jack.setheading(90)
    jack.forward(100)



turtle.listen()

turtle.onkey(up, "Up")
turtle.onkey(blueLine, "1")
turtle.onkey(blueFill,"+")

screen.mainloop()

Answer 1

turtle.color() 接受零到两个参数。

如果只提供一个参数，海龟会将其轮廓和填充颜色都更改为作为参数提供的颜色。
如果提供两个参数，第一个参数将是海龟的轮廓颜色，第二个将是海龟的填充颜色。

但是得到这个：

如果未提供任何参数，turtle.color() 方法将 return 乌龟的当前颜色以元组的形式显示。

因为你的乌龟的名字是 jack，jack.color()[0] 将 return 乌龟的轮廓颜色，jack.color()[1] 将 return 乌龟的填充颜色。

如此简单地改变你的功能：

def blueLine():
    jack.color("blue")
def blueFill():
    jack.color("blue")

至：

def blueLine():
    jack.color("blue", jack.color()[1])
def blueFill():
    jack.color(jack.color()[0], "blue")

Answer 2

I want to change either the line or the fill color with a key, but not both.

简单的答案是调用 pencolor() 和 fillcolor() 而不是 color():

from turtle import Turtle, Screen

def blueLine():
    jack.pencolor('blue')

def blueFill():
    jack.fillcolor('blue')

def up():
    jack.setheading(90)
    jack.forward(100)

penWidth = int(input("Enter your pen width: "))

screen = Screen()

jack = Turtle('turtle')
jack.color('red', 'green')
jack.pensize(penWidth)
jack.speed('fastest')

screen.onkey(up, 'Up')
screen.onkey(blueLine, '1')
screen.onkey(blueFill, '+')
screen.listen()

screen.mainloop()

仅更改 Python 海龟中的填充或线条颜色

Changing only fill or line color in Python turtle

python

turtle-graphics

python-turtle