如何同时在乌龟中绘制字母？

Question

我写了一个乌龟代码，一个字母一个字母地写着我的名字我想让乌龟同时写这些字母，但我不知道怎么做有人可以帮忙吗？是否可以定义字母然后将它们存储在列表中，然后将列表放入打印函数中以同时绘制字母？
这是代码：

import turtle
beni=turtle.Screen()
beni=turtle.Turtle()
beni.speed(4)
beni.pensize(20)
beni.pencolor('dark turquoise')
beni.penup()
beni.setx(-250)
beni.pendown()

beni.left(90)
beni.forward(200)
beni.right(90)
beni.forward(50)
for i in range (36):
    beni.right(5)
    beni.forward(5)
beni.forward(45)
beni.right(90)
beni.right(90)
beni.forward(50)
for i in range (36):
    beni.right(5)
    beni.forward(5)
beni.forward(45)
beni.right(90)
beni.forward(200)
beni.right(180)
beni.forward(200)

beni.penup()
beni.left(90)
beni.forward(150)
beni.pendown()
beni.left(90)

beni.pencolor('light blue')
beni.forward(220)
beni.right(90)
beni.forward(100)
beni.penup()
beni.left(180)
beni.forward(100)
beni.left(90)
beni.forward(110)
beni.left(90)
beni.pendown()
beni.forward(100)
beni.penup()
beni.left(180)
beni.forward(100)
beni.left(90)
beni.forward(110)
beni.left(90)
beni.pendown()
beni.forward(100)

beni.penup()
beni.forward(50)
beni.pendown()
beni.left(90)

beni.pencolor('plum')
beni.forward(220)
beni.right(90)
beni.right(70)
beni.forward(235)
beni.left(70)
beni.left(90)
beni.forward(220)

beni.penup()
beni.right(180)
beni.forward(220)
beni.left(90)
beni.forward(50)
beni.left(90)
beni.pendown()

beni.pencolor('Pale Green')
beni.forward(220)

Answer 1

乌龟的整个想法是，无论它走到哪里，它都会画一条线，所以就其性质而言，它不能同时画出不止一个东西。不过，您可以为字母定义函数，如下所示：

import turtle

def draw_b(t: Turtle):
    t.left(90)
    t.forward(200)
    t.right(90)
    t.forward(50)
    for i in range (36):
        t.right(5)
        t.forward(5)
    t.forward(45)
    t.right(90)
    t.right(90)
    t.forward(50)
    for i in range (36):
        t.right(5)
        t.forward(5)
    t.forward(45)
    t.right(90)
    t.forward(200)
    t.right(180)
    t.forward(200)

    t.penup()
    t.left(90)
    t.forward(150)
    t.pendown()
    t.left(90)

def draw_e(t: Turtle):
    t.forward(220)
    t.right(90)
    t.forward(100)
    t.penup()
    t.left(180)
    t.forward(100)
    t.left(90)
    t.forward(110)
    t.left(90)
    t.pendown()
    t.forward(100)
    t.penup()
    t.left(180)
    t.forward(100)
    t.left(90)
    t.forward(110)
    t.left(90)
    t.pendown()
    t.forward(100)

    t.penup()
    t.forward(50)
    t.pendown()
    t.left(90)

def draw_n(t:Turtle):
    t.forward(220)
    t.right(90)
    t.right(70)
    t.forward(235)
    t.left(70)
    t.left(90)
    t.forward(220)

    t.penup()
    t.right(180)
    t.forward(220)
    t.left(90)
    t.forward(50)
    t.left(90)
    t.pendown()

def draw_i(t: Turtle):
    t.forward(220)
    t.backward(220)
    t.penup()
    t.right(90)
    t.forward(50)
    t.left(90)
    t.pendown()

turtle.Screen()
beni=turtle.Turtle()
beni.speed(4)
beni.pensize(20)
beni.penup()
beni.setx(-250)
beni.pendown()

beni.pencolor('dark turquoise')
draw_b(beni)
beni.pencolor('light blue')
draw_e(beni)
beni.pencolor('plum')
draw_n(beni)
beni.pencolor('Pale Green')
draw_i(beni)

Answer 2

by its nature it can't draw more than one thing at exactly the same time

当涉及到海龟时，您应该比说不能更清楚。简陋但实用：

from turtle import Screen, Turtle

def draw_b(t):
    t.begin_poly()
    t.forward(220)
    t.right(90)
    t.forward(50)

    for _ in range(36):
        t.right(5)
        t.forward(5)

    t.forward(45)
    t.right(180)
    t.forward(50)

    for _ in range(36):
        t.right(5)
        t.forward(5)

    t.forward(45)
    t.end_poly()

    return t.get_poly()

def draw_e(t):
    t.begin_poly()
    t.forward(220)
    t.right(90)
    t.forward(100)
    t.backward(100)
    t.right(90)
    t.forward(110)
    t.left(90)
    t.forward(100)
    t.backward(100)
    t.right(90)
    t.forward(110)
    t.left(90)
    t.forward(100)
    t.end_poly()

    return t.get_poly()

def draw_n(t):
    t.begin_poly()
    t.forward(220)
    t.right(160)
    t.forward(235)
    t.left(160)
    t.forward(220)
    t.end_poly()

    return t.get_poly()

def draw_i(t):
    t.begin_poly()
    t.forward(220)
    t.backward(220)
    t.end_poly()

    return t.get_poly()

def draw_polygon(turtle, polygon):
    head, *tail = polygon

    turtle.goto(head)
    turtle.pendown()

    if tail:
        screen.ontimer(lambda p=tail: draw_polygon(turtle, p), 75)
    else:
        turtle.hideturtle()

LETTERS = {
    'B': ('dark turquoise', draw_b, 'fastest'),
    'E': ('light blue', draw_e, 'slowest'),
    'I': ('pale green', draw_i, 'fast'),
    'N': ('plum', draw_n, 'slow'),
}

screen = Screen()

for i, letter in enumerate("BENI"):
    color, function, speed = LETTERS[letter]

    turtle = Turtle()
    turtle.hideturtle()
    turtle.speed('fastest')
    turtle.penup()
    turtle.setheading(90)
    turtle.setx(-250 + 150 * i)

    polygon = function(turtle)

    turtle.color(color)
    turtle.pensize(20)
    turtle.speed(speed)
    turtle.showturtle()

    draw_polygon(turtle, polygon)

screen.mainloop()

我们遵循@SamStafford 关于将单个字母转化为函数的重要建议。但是我们不是让函数打印字母，而是让它们不可见地绘制字母，然后 return 生成多边形。我们平行地走所有的多边形（用ontimer()模拟）最后画出字母。

为方便起见，我修改了绘图代码，使其不提笔。这不是什么大问题，因为大多数笔画都透支了现有线条。

如何同时在乌龟中绘制字母？

How can I draw letters in turtle at the same time?

python

turtle-graphics