import turtle
for i in range(4):
    turtle.forward(100)
    turtle.right(90)
turtle.done()

import turtle
turtle.left(72)
for i in range(5):
    turtle.forward(100)
    turtle.right(144)
    turtle.forward(100)
    turtle.left(72)
turtle.done()

import turtle
colors = ["red", "orange", "yellow", "green", "blue", "purple"]
turtle.pensize(10)
for i in range(6):
    turtle.pencolor(colors[i])
    turtle.circle(50)
    turtle.right(60)
turtle.done()

import turtle
turtle.pensize(2)
for i in range(100):
    turtle.forward(i*2)
    turtle.right(90)
turtle.done()

import math
import turtle as tu
import random as ra
tu.setup(1.0, 1.0)
tu.screensize(1.0, 1.0)  # 設(shè)置畫(huà)布大小
tu.bgcolor('black')  # 設(shè)置畫(huà)布顏色
t = tu.Pen()
t.ht()  # 隱藏畫(huà)筆
colors2 = ['yellow', 'gold', 'orange']    # 星星的顏色列表
colors3 = ['skyblue', 'white', 'cyan', 'aqua']  # 流星的顏色列表
class Star():  # 流星類(lèi)
    def __init__(self):
        self.x1 = -850
        self.y1 = 300
        self.x2 = ra.randint(-1500, 1000)  # 星星的橫坐標(biāo)
        self.y2 = ra.randint(-500, 500)  # 星星的縱坐標(biāo)
        self.r2 = ra.randint(1, 5)
        self.x3 = ra.randint(-1500, 1000)  # 流星的橫坐標(biāo)
        self.y3 = ra.randint(-500, 500)  # 流星的縱坐標(biāo)
        self.r3 = ra.randint(50, 100)  # 流星的半徑
        self.t = ra.randint(1, 3)
        self.speed2 = ra.randint(1, 3)  # 星星流星移動(dòng)速度
        self.speed3 = ra.randint(10, 15)  # 流星的移動(dòng)速度
        self.color2 = ra.choice(colors2)  # 星星的顏色
        self.color3 = ra.choice(colors3)  # 流星的顏色
    def moon(self):   # 畫(huà)月亮
        t.penup()
        t.goto(self.x1, self.y1)
        t.pendown()
        t.pencolor("yellow")
        t.begin_fill()
        t.fillcolor("gold")
        t.circle(66)
        t.end_fill()
    def star1(self):  # 畫(huà)星星的函數(shù)
        t.pensize(1)  # 設(shè)置畫(huà)筆大小
        t.penup()  # 提筆
        t.goto(self.x2, self.y2)  # 設(shè)置星星在畫(huà)布中的初始坐標(biāo)
        t.pendown()  # 落筆
        t.speed(0)  # 畫(huà)星星的速度，范圍為0~10（0最快）
        t.color(self.color2)  # 設(shè)置星星的外框顏色
        t.begin_fill()  # 開(kāi)始填色
        t.fillcolor(self.color2)  # 星星的內(nèi)部顏色
        for i in range(5):  # 循環(huán)畫(huà)星星
            t.forward(self.r2)
            t.right(144)
            t.forward(self.r2)
            t.left(72)
        t.end_fill()  # 結(jié)束填充顏色
    def star2(self):  # 畫(huà)流星函數(shù)
        t.pensize(1)  # 流星的大小
        t.penup()  # 提筆
        t.goto(self.x3, self.y3)  # 隨機(jī)位置
        t.pendown()  # 落筆
        t.color(self.color3)
        t.begin_fill()
        t.fillcolor(self.color3)
        t.setheading(-30)
        t.right(self.t)
        t.forward(self.r3)
        t.left(self.t)
        t.circle(self.r3 * math.sin(math.radians(self.t)), 180)
        t.left(self.t)
        t.forward(self.r3)
        t.end_fill()
    def move(self):  # 移動(dòng)函數(shù)
        if self.x1 <= 850:  # 當(dāng)月亮還在畫(huà)布中時(shí)
            self.x1 += 1  # 設(shè)置左右移動(dòng)速度
        else:
            self.x1 = -850
        if self.x2 <= 1000:  # 當(dāng)星星還在畫(huà)布中時(shí)
            self.x2 += 2 * self.speed2  # 設(shè)置左右移動(dòng)速度
        else:
            self.r2 = ra.randint(1, 5)
            self.x2 = ra.randint(-1500, -1000)
            self.speed2 = ra.randint(1, 3)
            self.color2 = ra.choice(colors2)
        if self.y3 >= -500:  # 當(dāng)流星還在畫(huà)布中時(shí)
            self.y3 -= self.speed3  # 設(shè)置上下移動(dòng)速度
            self.x3 += 2 * self.speed3  # 設(shè)置左右移動(dòng)速度
        else:
            self.r3 = ra.randint(50, 100)
            self.t = ra.randint(1, 3)
            self.x3 = ra.randint(-1500, -750)
            self.y3 = ra.randint(-500,1000)
            self.speed3 = ra.randint(10, 15)
            self.color3 = ra.choice(colors3)