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defbgpic(self,picname=None):

"""Setbackgroundimageorreturnnameofcurrentbackgroundimage.

Optionalargument:

picname--astring,nameofagif-fileor"nopic".

Ifpicnameisafilename,setthecorrespondingimageasbackground.

Ifpicnameis"nopic",deletebackgroundimage,ifpresent.

IfpicnameisNone,returnthefilenameofthecurrentbackgroundimage.

Example(foraTurtleScreeninstancenamedscreen):

>>>screen.bgpic()

'nopic'

>>>screen.bgpic("landscape.gif")

>>>screen.bgpic()

'landscape.gif'

"""

ifpicnameisNone:

returnself._bgpicname

ifpicnamenotinself._bgpics:

self._bgpics[picname]=self._image(picname)

self._setbgpic(self._bgpic,self._bgpics[picname])

self._bgpicname=picname

#coding:utf-8

importpygame

importos

importsys

frompygame.localsimport*

os.chdir('E:/星空下的告白')

os.getcwd()

pygame.init()

pygame.mixer.init()

pygame.mixer.music.load("星空之美.mp3")

#pygame.mixer.music.set_volume(0.4)

pygame.mixer.music.play()

bg_size=width,,200

bg_rgb=(255,255,255)

screen1=pygame.display.set_mode(bg_size)

pygame.display.set_caption("告白音乐")

clock=pygame.time.Clock()

pause_rect=pause_image.get_rect()

print(pause_rect.width,pause_rect.height)

pause_rect.left,pause_rect.top=(width-pause_rect.width)//2,(height-pause_rect.height)//2

fromturtleimport*

fromrandomimportrandom,randint

os.chdir('E:星空下的告白')

screen=Screen()

width,,700

screen.setup(width,height)

screen.title("浪漫的流星雨")

screen.bgcolor("black")

screen.mode("logo")

screen.delay(0)

printer=Turtle()

printer.hideturtle()

printer.penup()

printer.color('red')

printer.goto(-100,-350)

printer.write("宇宙广阔(弱水三千)""nn",move=True,align="left",font=("Italic",30,"bold"))

printer.goto(-50,-400)

printer.write("只寻你一颗!(只取一瓢饮!)nn",move=True,align="left",font=("Italic",30,"bold"))

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=[]

foriinrange(300):

star=t.clone()

s=random()/3

ifs>0.01ands<0.03:

star.pencolor("black")

star.fillcolor("black")

elifs>0.03ands<0.04:

star.pencolor("lightcoral")

star.fillcolor("lightcoral")

elifs>0.05ands<0.1:

star.pencolor("green")

star.fillcolor("green")

elifs>0.15ands<0.16:

star.pencolor("yellow")

star.fillcolor("yellow")

elifs>0.19ands<0.2:

star.pencolor("red")

star.fillcolor("red")

elifs>0.21ands<0.22:

star.pencolor("purple")

star.fillcolor("purple")

elifs>0.29ands<0.3:

star.pencolor("darkorange")

star.fillcolor("darkorange")

elifs>0.31ands<0.32:

star.pencolor("red")

star.fillcolor("yellow")

elifs>0.32ands<0.33:

star.pencolor("yellow")

star.fillcolor("white")

star.shapesize(s,s)

star.speed(int(s*30))

star.setx(width/2+randint(1,width))

star.sety(randint(-height/2,height/2))

#star.showturtle()

stars.append(star)

i=0

pause=False

whileTrue:

i+=0

forstarinstars:

star.setx(star.xcor()-3*star.speed())

ifstar.xcor()<-width/2:

star.hideturtle()

star.setx(width/2+randint(1,width))

star.sety(randint(-height/2,height/2))

star.showturtle()

ifi>=100:

break

#查找队列事件

foreventinpygame.event.get():

#查找点击关闭窗口事件

ifevent.type==QUIT:

sys.exit

#查找鼠标左右击事件

ifevent.type==MOUSEBUTTONDOWN:

ifevent.button==1:

pause=notpause

ifevent.button==3:

pause=notpause

ifevent.type==KEYDOWN:

ifevent.key==K_SPACE:

pause=notpause

screen1.fill(bg_rgb)

ifpause:

pygame.mixer.music.pause()

screen1.blit(pause_image,pause_rect)

else:

pygame.mixer.music.unpause()

screen1.blit(play_image,pause_rect)

pygame.display.flip()

clock.tick(30)