如何将海龟发送到随机位置？

Question

我一直在尝试使用 goto() 将海龟发送到随机位置，但在运行程序时出现错误。

我不知道该怎么做，也不确定其他方法。我当前的代码是：

t1.shape('turtle')
t1.penup()
t1.goto((randint(-100,0)),(randint(100,0)))#this is the line with the error

我想让乌龟移动到 -100,100 和 0,100 之间的方框中的随机坐标，但出现错误：

Traceback (most recent call last):

File "C:\Users\samdu_000\OneDrive\Documents\python\battle turtles.py",    line 18, in <module>

t1.goto((randint(-100,0)),(randint(100,0)))

File "C:\Users\samdu_000\AppData\Local\Programs\Python\Python3732\lib\random.py", line 222, in randint

return self.randrange(a, b+1)

File "C:\Users\samdu_000\AppData\Local\Programs\Python\Python37-
32\lib\random.py", line 200, in randrange

raise ValueError("empty range for randrange() (%d,%d, %d)" % (istart, 
istop, width))

 ValueError: empty range for randrange() (100,1, -99)

Answer 1

您要求的是 100 到 0 之间的数字。但是请查看 reference 的 randint():

random.randint(a, b)

Return a random integer N such that a <= N <= b.

a 应小于或等于 b。因此，将 randint(100,0) 替换为 randint(0,100):

import turtle
from random import randint

t1 = turtle.Turtle()

t1.shape('turtle')
t1.penup()
t1.goto(randint(-100,0),randint(0,100))

turtle.done()

演示：https://repl.it/@glhr/55439167

如何将海龟发送到随机位置？

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