需要帮助来“画”线在Python中（pygame）
我一直在遵循教程来学习 pygame。下面的代码是创建一个绿色的窗口（640 x 400）。该程序还公开了在屏幕上画一条红线的方法。到目前为止，我还没有成功地让这条线出现。有什么建议吗？
#! /usr/bin/env python
import pygame
screen = pygame.display.set_mode((640, 400))
running = 1
green = 0, 255, 0
red = 255, 0, 0
point1 = 639, 479
point2 = 0, 0
while running:
event = pygame.event.poll()
if event.type == pygame.QUIT:
running = 0
screen.fill(green)
pygame.display.flip()
pygame.draw.line(screen, red, point1, point2)
ive been following a tutorial to learn pygame. the code below is to make a window (640 by 400) that s green. The program is also exposed to draw a red line across the screen. so far i have not been sucessfull in having the line appear. any suggestions?
#! /usr/bin/env python
import pygame
screen = pygame.display.set_mode((640, 400))
running = 1
green = 0, 255, 0
red = 255, 0, 0
point1 = 639, 479
point2 = 0, 0
while running:
event = pygame.event.poll()
if event.type == pygame.QUIT:
running = 0
screen.fill(green)
pygame.display.flip()
pygame.draw.line(screen, red, point1, point2)
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您需要在display.flip()之前调用draw.line，因为现在您在绘制线条之前将数据从缓冲区复制到显示器。
You need to call draw.line before the display.flip(), as it is now you are copying the data from the buffer to the display before the lines is drawn.
为了使某些功能正常工作，您必须在一开始就将代码更改为：
这可确保您拥有所有必需品并“初始化” pygame。
没有 pygame.init() 它不会“打开”大多数功能
in order for some functions to work you have to change your code at the beginning to:
this makes sure you have all of the essentials and that you "initialize" pygame.
without pygame.init() it wouldn't "turn on" most of the functions