Question

我在Sqlite3中建立了数据库，我读取了文件并从数据库中获取了所有用户，然后我想为每个用户画一个圆圈。因此，如果有三个用户，我想绘制三个彼此间隔约100像素的cicle。到目前为止，这就是我所拥有的：

with sqlite3.connect("root\\Users.db") as db:
    cursor = db.cursor()
cursor.execute("SELECT * FROM users")
data = cursor.fetchall()
an = len(data)
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
    screen.fill(white)
    for i in range(an):
        pygame.draw.circle(screen, black, (dc,250), 77, 1)
    pygame.display.flip()

Answer 1

我会改变你的

for i in range(an):
    pygame.draw.circle(screen, black, (dc, 250), 77, 1)

到

offset = 100 # change offset to whatever you want the offset to be
for i in range(an):
    pygame.draw.circle(screen, black, (i*offset, 250), 77, 1)

但是，我要记住这段代码是从圆的中心到下一个圆的中心。为了使圆的边缘距离100px，您必须将圆的半径添加到offset变量中。看起来像：

    radius = 77
    offset = 100 + (2*radius) # change offset to whatever you want the offset to be

    for i in range(an):
        pygame.draw.circle(screen, black, (i*offset, 250), 77, 1)

如何从数据库中绘制pygame中的圆圈数量

1 个答案: