随机生成用于图形的整数

Question

the function of this program is to randomly generate numbers ranging from 1-10 for the variables right, left, up, down to be used on a 40 x40 graph. in order to have a list containing 2 numbers for the x and y variables, i have another random number generator that picks which will be chosen

import random
choice_x = random.randint(0, 1)
choice_y = random.randint(0, 1)
right = random.randint(10, 20)
left = random.randint(0, 10)
up = left = random.randint(0, 10)
down = left = random.randint(10, 20)
directions = [right, left, up, down]

if choice_x == 0:
  del directions[right]
elif choice_x == 1:
  del directions[left]

if choice_y == 0:
  del directions[up]
elif choice_y == 1:
 del directions[down]
 print (directions)

whenever i try to execute this code, i keep getting a message stating "IndexError: list assignment index out of range"

Answer 1

Looks like your error is within the if statements. You're not indexing the directions list - you're trying to index a variable ( right , left , up , down ), hence the error.

Try this:

if choice_x == 0: del directions[0]
elif choice_x == 1: del directions[1]

if choice_y == 0: del directions[2]
elif choice_y == 1: del directions[3]