将代码从 javascript 转换为 python，尝试使用 Python Turtle

Question

下面的代码不绘制任何图像： """

import turtle 
import numpy as np

turtle = turtle.Turtle()
steps = 24000
size = 61

def walk(i):
    turtle.penup()
    term =  1.0357902468 * 2 * np.pi * i/steps
    turtle.goto(size * np.sin(term), size * np.cos(term))
    turtle.pendown()
    len = 5+2.5*np.sin(0.5 * np.pi + term)*np.cos(0.5 * np.pi + term)
    l = 0.02
    if l < len:
        turtle.right(np.sin(l + steps/8 * term))
        turtle.forward(l)
        l = l * 1.01
    return i < steps

i=2
walk(i)
"""

它只是不起作用而且无法修复，还是我遗漏了什么？

Answer 1

在我看来，当您使用 while 时，您似乎使用了 if。进行替换并整理代码，它确实绘制了一些东西：

from turtle import Screen, Turtle
from math import sin, cos, pi

STEPS = 24000
SIZE = 61

def walk(i):
    turtle.penup()
    term = 1.0357902468 * 2 * pi * i/STEPS
    turtle.goto(SIZE * sin(term), SIZE * cos(term))
    turtle.pendown()

    length = 5 + 2.5 * sin(pi/2 + term) * cos(pi/2 + term)
    l = 0.02

    while l < length:
        turtle.right(sin(l + STEPS/8 * term))
        turtle.forward(l)
        l *= 1.01

    return i < STEPS

screen = Screen()

turtle = Turtle()
turtle.speed('fastest')  # because I have no patience

walk(2)  # return value ignored

screen.exitonclick()

下一个要考虑的问题是，您是否期望 right() 以度数（默认）或弧度（选项）运行，JavaScript 使用。

将代码从 javascript 转换为 python，尝试使用 Python Turtle

Converted a code from javascript to python, tryin to use Python Turtle

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