from turtle import * from random import random,randint screen = Screen() width ,height = 800,600 screen.setup(width,height) screen.title("模擬3D星空") screen.bgcolor("black") screen.mode("logo") screen.delay(0)#這里要設為0，否則很卡 t = Turtle(visible = False,shape='circle') t.pencolor("white") t.fillcolor("white") t.penup() t.setheading(-90) t.goto(width/2,randint(-height/2,height/2)) stars = [] for i in range(200): star = t.clone() s =random() /3 star.shapesize(s,s) star.speed(int(s*10)) star.setx(width/2 + randint(1,width)) star.sety( randint(-height/2,height/2)) star.showturtle() stars.append(star) while True: for star in stars: star.setx(star.xcor() - 3 * star.speed()) if star.xcor()<-width/2: star.hideturtle() star.setx(width/2 + randint(1,width)) star.sety( randint(-height/2,height/2)) star.showturtle()

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