py画图_分界线画正方形（大于0为红色，小于为绿色）

from turtle import *
from random import *
speed(0)
penup()
goto(-190,0)
pendown()

for j in range(20):
    x=randint(-200,200)
    y=randint(-200,200)
    penup()
    goto(x, y)
    pendown()
    if x>0:
        color('red')
    else:
        color('green')
    begin_fill()
    for i in range(4):
        fd(30)
        left(90)
    end_fill()

    # penup()
    # goto(-190+(j+1)*50, 0)
    # pendown()

input()