# 如何在pygame中同时显示正方形和圆形？

`````` import pygame
from pygame.locals import *
import os
import random
import math
import sys
import time

white = (255,255,255)
blue = (0,0,255)
gravity = 10
size =10
height = 500
width =600
varHeigth = height
ballNum = 5
eBall = []
apGame = pygame.display.set_mode((width, height))
pygame.display.set_caption("AP Project")

clock = pygame.time.Clock()

class Player(object):

def __init__(self):
red = (255, 0, 0)
move_x = 300
move_y = 400
self.rect = pygame.draw.rect(apGame,red, (move_x, move_y, 10, 10))
self.dist = 10

def handle_keys(self):
for e in pygame.event.get():
if e.type == pygame.QUIT:
pygame.quit();
exit()
elif e.type == pygame.KEYDOWN:
key = e.key
if key == pygame.K_LEFT:
self.draw_rect(-1, 0)
elif key == pygame.K_RIGHT:
self.draw_rect(1, 0)
elif key == pygame.K_ESCAPE:
pygame.quit();
exit()

def draw_rect(self, x, y):
red = (255, 0, 0)
black = (0, 0, 0)
'''apGame.fill(black)'''
self.rect = self.rect.move(x * self.dist, y * self.dist);
pygame.draw.rect(apGame, red , self.rect)
pygame.display.update()

def draw(self,surface):
red = (255, 0, 0)
move_x = 300
move_y = 400
pygame.draw.rect(apGame, red, (move_x, move_y, 10, 10))

move_x = 300
move_y = 400
red = (255, 0, 0)
black = (0, 0, 0)
player = Player()
clock = pygame.time.Clock()
'''apGame.fill(black)'''
player.draw(apGame)
pygame.display.update()

for q in range(ballNum):
x = random.randrange(0, width)
y = random.randrange(0, varHeigth)
eBall.append([x, y])

while True:
#I think this is where my problem is
apGame.fill(black)
player.handle_keys()

for i in range(len(eBall)):

pygame.draw.circle(apGame, blue, eBall[i], size)

eBall[i][1] += 5

if eBall[i][1] > height:

y = random.randrange(-50, -10)
eBall[i][1] = y

x = random.randrange(0, width)
eBall[i][0] = x

pygame.display.flip()
clock.tick(30)
``````