from turtle import*
n = 100.0
speed(0)
screensize(bg="black")
left(90)
forward(3n)
color("orange", "yellow")
begin_fill()
left(126)
for i in range(5):
forward(n/5)
right(144)
forward(n/5)
left(72)
end_fill()
right(126)
def drawlight():
if r.randint(0, 30) == 0:
color('tomato')
circle(6)
elif r.randint(0,30) == 1:
color('orange')
circle(3)
else:
color('dark green')
color('dark green')
backward(n4.8)
def tree(d, s):
if d <= 0: return
forward(s)
tree(d-1, s*.8)
right(120)
tree(d-3, s*.5)
drawlight()
right(120)
tree(d-3, s*.5)
right(120)
backward(s)
tree(15, n)
backward(n/2)
for i in range(200):
a = 200 - 400 * r.random
b = 10 - 20 * r.random()
up()
forward(b)
left(90)
forward(a)
down()
if r.randint(0, 1) == 0:
color("tomato")
else:
color('wheat')
circle(2)
up()
backward(a)
right(90)
backward(b)
t.color("dark red" "red")
t.write("Merry Christmas",align = "center", font = ("Comic Sans MS" ,40, "bold"))
def drawsnow():
t.ht()，ht=hideturtle
t.pensize(2)
for i in range(200):
t.pencolor("white")
t.pu() ，pu=penup
t.setx(r.randint(-350,350))
t.sety(r.randint(-100,350))
t.pd()
dens = 6
snowsize = r.randint(1,10)
for j in range(dens):
t.fd(int(snowsize))
t.backward(int(snowsize)）
t.right(int(360/dens))
drawsnow()
t.done()
从你贴的代码来看，你"if" 还有"for" 下面都没有跟缩进啊