Day_10 异常与pygame

异常捕获

try:
    """
    需要捕获异常的代码
    
    """
except:
    """
    出现异常会出现的代码
    """

try:
    '''
    出现异常会出现的代码
    '''

except '''错误类型''':
    '''
    捕获到指定的错误类型，才执行的代码
    '''



if __name__ == '__main__':
    try:
        a=0
        b=3
        print(b/a)

    except ZeroDivisionError:
        print('error')

pygame操作流程

# 初始化
    pygame.init()
    # 创建窗口
    screen =pygame.display.set_mode((600,400))
    # 游戏循环

    while True:
        # 检测事件
        for event in pygame.event.get():
            # 检测窗口关闭按钮是否被点击
            if event.type == pygame.QUIT:
                print('game over')
                exit()
                # 退出游戏
        # 其他操作

pygame显示文字

pygame.init()
    screen = pygame.display.set_mode((600,400))
    screen.fill((230,230,39))
    # 设置窗口背景颜色
    # 创建字体对象
    # 创建系统字体
    # SysFont(name, size, bold=0, italic=0, constructor=None):
    # name-字体名 size-字体大小 bold-加粗 italic-倾斜
    # font = pygame.font.SysFont('Times',20)
    # 2.根据字体创建显示对象
    # 创建自定义字体Font(字体文件路径，字体大小)
    font = pygame.font.Font('./font/aa.ttf',50)
    surface = font.render('hello开始',True,(230,39,39))
    # text-要显示的文字内容,antialias-抗锯齿,color-颜色，backgroud-背景
    # color->计算机三原色(红绿蓝),值的范围都是0-255
    # render(self, text, antialias, color, background=None)
    # 3.将内容添加到窗口上
    # blit(需要显示的对象，显示位置)
    # 显示的对象-->Surface类型的数据
    # 显示位置-->坐标(x,y)
    #
    screen.blit(surface,(100,100))
    # 4.将窗口上的内容展示出来
    # pygame.display.flip()
    pygame.display.flip()
    while True:
        for event in pygame.event.get():
            if event.type==pygame.QUIT:
                exit()

pygame显示图片与图片操作

pygame.init()
    screen = pygame.display.set_mode((324,310))
    screen.fill((230,39,39))
    font = pygame.font.Font('./font/aa.ttf',20)
    surface = font.render('路飞',True,(230,39,39))
    # 1.获取图片对象
    image = pygame.image.load('./file/2.jpg')
    image_size = image.get_size()
    # 获取图片大小
    print(image_size)
    # 形变，transform:形变包含缩放scale、旋转、平移
    # scale1 = pygame.transform.scale(image,(200,200))
    # screen.blit(scale1,(5,5))
    # rotate(旋转对象，旋转角度)负数为顺时针反向
    # rotate1 = pygame.transform.rotate(image,-45)
    # screen.blit(rotate1,(5,5))
    # rotozoom(Surface,angle,scale)旋转缩放,参数：对象，角度，缩放比例
    # rotozoom1 = pygame.transform.rotozoom(image,0,0.5)
    # screen.blit(rotozoom1,(5,5))
    # 2.将图片对象渲染到窗口上
    # screen.blit(image,(5,5))
    # 3.展示屏幕上
    screen.blit(surface,(5,10))
    pygame.display.flip()
    while True:
        for event in pygame.event.get():
            if event.type==pygame.QUIT:
                exit()

pygame基本显示

    screen = pygame.display.set_mode((400,400))
    screen.fill((230,200,0))
    '''
    1.画直线
    line(Surface,color,start_pos,end-pos,width=1)
    Surface->画在哪里 start_pops->起点
    '''
    # 正方形
    # pygame.draw.line(screen,(255,0,0),(0,0),(0,200),2)
    # pygame.draw.line(screen, (255, 0, 0), (0, 0), (200, 0), 2)
    # pygame.draw.line(screen, (255, 0, 0), (0, 200), (200, 200), 2)
    # pygame.draw.line(screen, (255, 0, 0), (200, 200), (200, 0), 2)

    # 多个点closed关闭
    # pygame.draw.line(screen, (255, 0, 0), False,[], 2)
    # 展示

    # 画曲线
    # arc(Surface,color,Rect,start_angle,stop_angle,width=1)
    # Rect->(x,y.width,height)矩形
    # start_angle-开始角度
    # 4分之一圆
    # 在定义的矩形框内画内切圆，开始角度与结束角度决定圆的范围
    from cmath import  pi
    pygame.draw.arc(screen,(0,0,0),(200,200,100,100),pi,2*pi)
    pygame.draw.arc(screen, (0, 0, 0), (250, 300, 5, 5), pi, 2*pi)
    pygame.draw.arc(screen, (0, 0, 0), (0, 200, 100, 100), 0, 2*pi)
    pygame.draw.arc(screen, (0, 0, 0), (50, 300, 5, 5), 0, 2*pi)
    # pygame.draw.arc(screen, (0, 0, 0), (200, 200, 100, 100), pi / 2, pi)

    # 画圆
    # circle(位置,颜色，圆心位置，半径，width-0)
    import random
    pygame.draw.circle(screen,(random.randint(0,255),20,20),(100,100),50)
    pygame.display.flip()
    # 椭圆的画法：矩形内切 (0,2pi)或ellipse

    pygame.draw.ellipse(screen,(0,100,0),(100,100,200,80),1)
    pygame.display.flip()




    while True:
        for event in pygame.event.get():
            if event.type ==pygame.QUIT:
                exit()