python - 无法确定 turtle 运动的时间

Question

我编写了以下代码，它在两个随机位置创建扩展方 block 。我想编写一个函数f(squares,秒)，这样如果用户输入f(5,10)，每10秒就会开始形成一个新的正方形，直到形成5为止。 p>

我似乎找不到任何东西可以让我在一个方 block 仍在形成时开始一个新的方 block 。我可以同时制作两个表格，如下面的代码所示，或者先完成一个表格，然后开始形成另一个表格。帮忙？

import sys
sys.setExecutionLimit(1000000)
import turtle
import random
wn = turtle.Screen()
#Creates alex the turtle
alex = turtle.Turtle()
alex.color('blue')
alex.pensize(3)
alex.ht()
alex.penup()
#creates bob the turtle
bob = turtle.Turtle()
bob.color('blue')
bob.pensize(3)
bob.ht()
bob.penup()

#Sets variables so that alex starts in a random location
a=random.randrange(360)
b=random.randrange(360)
x=random.randrange(50,150)
y=random.randrange(50,150)
#Sets variables so that bob starts in a random location
l=random.randrange(360)
m=random.randrange(360)
n=random.randrange(50,150)
o=random.randrange(50,150)
#Moves alex to his random starting location
alex.speed(100)
alex.left(a)
alex.forward(x)
alex.left(b)
alex.forward(y)
alex.pendown()
#Moves bob to his random starting location
bob.speed(100)
bob.left(l)
bob.forward(n)
bob.left(m)
bob.forward(o)
bob.pendown()

#Draws the 2 squares
for i in range(1,500):
    alex.forward(i)
    alex.left(90)
    bob.forward(i)
    bob.left(90)

Answer 1

您想要的功能需要独立的执行线程。您需要使用多线程 package和 tutorial

您将需要这样的逻辑:

import time
import threading

def draw_square():
    # Draw a square in a random place
    length = random.randrange(360)
    width  = random.randrange(360)
    x_pos  = random.randrange(50,150)
    y_pos  = random.randrange(50,150)

    # Continue with your square-drawing logic;
    # you already know how to do this.

while True:
    threading.thread(draw_square)
    time.sleep(10)