使用Python的pygame库绘制图形示例详解

import pygame #导包
from pygame.locals import*
import sys
black=0,0,0
lightgreen=144,238,144
pygame.init() #初始化
screen = pygame.display.set_mode(size=(600,600),flags=0)
#绘制一个600*600的框框
while True:
    for event in pygame.event.get():
        if event.type in (QUIT,KEYDOWN):
            sys.exit()#python的退出程序
    linewidth=4 #“线”的粗细
    pygame.draw.line(screen,lightgreen,(300,0),(300,600),linewidth)
    pygame.display.update()  # 刷新展示

import pygame #导包
from pygame.locals import*
import sys
black=0,0,0
lightgreen=144,238,144
screen_width=600
screen_height=600
pygame.init() #初始化
screen = pygame.display.set_mode(size=(screen_width,screen_height),flags=0)
#绘制一个600*600的框框
# 设置网格大小
grid_size = 30  # 每个网格的大小为30个像素
# 绘制网格
for i in range(0, screen_width, grid_size):
    pygame.draw.line(screen, lightgreen, (i, 0), (i, screen_height))
for i in range(0, screen_height, grid_size):
    pygame.draw.line(screen, lightgreen, (0, i), (screen_width, i))
while True:
    for event in pygame.event.get():
        if event.type in (QUIT,KEYDOWN):
            sys.exit()#python的退出程序
    linewidth=4
    pygame.display.update()  # 刷新展示
 

import pygame #导包
from pygame.locals import*
import sys
black=0,0,0
lightgreen=144,238,144
screen_width=600
screen_height=600
pygame.init() #初始化
screen = pygame.display.set_mode(size=(screen_width,screen_height),flags=0)
#绘制一个600*600的框框
# 主循环
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
    color = 255,255,255
    position = 300,250
    radius = 100
    width = 10
    linewidth=4
    screen.fill(color)
    pygame.draw.circle(screen,lightgreen,position,radius,linewidth)
    pygame.display.update()  # 刷新展示
 

import pygame #导包
from pygame.locals import*
import sys
screen_width=600
screen_height=600
pygame.init() #初始化
screen = pygame.display.set_mode(size=(screen_width,screen_height))
pygame.display.set_caption("这是标题")
pos_x = 300
pos_y =300
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
    lightgreen=144,238,144
    width = 0
    pos = pos_x, pos_y, 300, 300
    pygame.draw.rect(screen, lightgreen, pos, width)#300*300的矩形
    pygame.display.update()

import pygame #导包
from pygame.locals import*
import sys
screen_width=600
screen_height=600
pygame.init() #初始化
screen = pygame.display.set_mode(size=(screen_width,screen_height))
pygame.display.set_caption("这是标题")
pos_x = 300
pos_y =300
vel_x = 0.14
vel_y = 0.1#粗略滴可以看作矩形的移动速度
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
    screen.fill((0,0,0))#每次循环都要将背景置为黑色
    pos_x += vel_x
    pos_y += vel_y
    #当矩形超过屏幕范围后返回
    if pos_x > 500 or pos_x < 0:
        vel_x = -vel_x
    if pos_y > 500 or pos_y < 0:
        vel_y = -vel_y
#绘制矩形
    color = 255, 255, 1
    width = 0
    pos = pos_x,pos_y, 100, 100
    pygame.draw.rect(screen,color,pos,width)
    pygame.display.update()