def cut_img(img):#把图的H切割为4的倍数 h = img.shape[0] remain = h%4 h_new = h - remain img_new = img[:h_new, :] return img_new
时间: 2024-04-18 07:28:54 浏览: 58
def cut_img(img):
# 获取图像的高度
h = img.shape[0]
# 计算需要切割的行数
remain = h % 4
h_new = h - remain
# 切割图像
img_new = img[:h_new, :]
return img_new
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帮我注释下面代码class Ball: """ 针头 """ def __init__(self, angle): self.x = x0 self.y = y0 + length self.center = (self.x, self.y) self.radius = 12 self.angle = angle ball_group.append(self) def draw(self, surface): pygame.draw.line(surface, WHITE, shaft, self.center, 2) pygame.draw.circle(surface, WHITE, self.center, 12) def move(self, speed): """ 围绕转轴做圆周运动 :param speed: 转动的角速度 :return: """ if self.angle < 2 * math.pi: self.angle += speed else: self.angle = self.angle - 2 * math.pi self.x = x0 - length * math.sin(self.angle) self.y = y0 + length * math.cos(self.angle) self.center = (self.x, self.y) def check_collide(new_ball): for ball in ball_group: distance = math.sqrt(abs(ball.x - new_ball.x) ** 2 + abs(ball.y - new_ball.y) ** 2) if ball is not new_ball and distance <= new_ball.radius * 2: return True return False def game_init(): global stage, gaming, remain_ball, stage_pass,score if stage == len(all_stage): stage = 1 elif stage_pass: stage += 1 ball_group.clear() for a in all_stage[stage - 1]: b = Ball(a) remain_ball = ball_num[stage - 1] score=0 pygame.time.delay(200) gaming = True stage_pass = False button = Button('重新开始', color=(220, 0, 0)) button.rect.center = shaft button.click_connect(game_init) def restart(): for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() sys.exit() button.get_click(event) def game_stage(): global remain_ball, stage, gaming, stage_pass,score if remain_ball == 0 and gaming: stage_pass = True gaming = False
这段代码是一个 Python 类的定义,名为 `Ball`,表示一个球的属性和行为。下面是对每个方法的注释:
- `__init__`: 初始化方法,传入一个 `angle` 参数表示球相对于垂直线的旋转角度,设置球的初始坐标、圆心、半径和角度,并将球添加到球组中。
- `draw`: 绘制球的方法,传入一个 `surface` 参数表示绘制球的表面,使用 Pygame 库的 `draw` 函数绘制球的轴和圆。
- `move`: 移动球的方法,传入一个 `speed` 参数表示球的角速度,根据角度计算球的新坐标和圆心,实现球的圆周运动。
- `check_collide`: 检查球碰撞的方法,传入一个 `new_ball` 参数表示一个新的球,遍历球组中的每个球,计算新球与其他球之间的距离,判断是否发生碰撞。
- `game_init`: 初始化游戏的方法,设置当前游戏的关卡、剩余球数、得分等变量,清空球组,根据当前关卡生成新的球,并将游戏状态设置为进行中。
- `restart`: 重新开始游戏的方法,处理 Pygame 库的事件,包括退出游戏和点击重新开始按钮。
- `game_stage`: 游戏关卡的方法,根据剩余球数和游戏状态判断游戏是否结束或通关,更新游戏状态和得分等变量。
解释代码: def __len__(self): remain = len(self.dataset) % self.batch_size if self.drop_last or not remain: return len(self.dataset) // self.batch_size else: return len(self.dataset) // self.batch_size + 1
As an AI language model, I do not have personal opinions or beliefs. "Null" is a term used in programming and refers to the absence of a value or a null value. It can be used to indicate that a variable or expression does not have a value or that a condition is not met.
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