用pygame生成和绘制正弦波

import pygame
import math

# 初始化pygame
pygame.init()

# 设置窗口大小和背景色
width, height = 800, 400
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption("Sin Wave")
bg_color = (255, 255, 255)

# 设置正弦波的参数
frequency = 1  # 频率
amplitude = 100  # 振幅
phase = 0  # 相位

# 渲染循环
running = True
while running:
    # 处理退出事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # 填充背景色
    screen.fill(bg_color)

    # 绘制正弦波
    points = []
    for x in range(width):
        y = int(height / 2 + amplitude * math.sin(2 * math.pi * frequency * x / width + phase))
        points.append((x, y))
    pygame.draw.lines(screen, (0, 0, 0), False, points, 2)

    # 更新屏幕
    pygame.display.flip()

# 退出pygame
pygame.quit()