Elif语句被忽略

Question

我正在编写brick breaker代码，我的第三个和第四个elif条件被忽略。你知道吗

为了区分水平或横向击中砖块侧面以相应地改变球的方向，我指定了一个连续检查的5像素边距。我的代码正确地确定了球何时落在上边距或下边距，但球只是通过边，即使我用同样的方式编写了这些条件。我知道这些语句被完全忽略了，因为它的所有函数都被忽略了。你知道吗

砖块中用于指定边距的边框标记的末尾有一个B

def collision(self):
    if (ball.xcor() > self.colisL) and (ball.xcor() < self.colisR) and (ball.ycor() > self.colisD) and (ball.ycor() < self.colisDB):
        self.turtle.hideturtle()
        ball.dy *= -1
        self.colisU = 1000
        self.colisD = 1000
        self.colisL = 1000
        self.colisR = 1000
        global score
        score += 1
    elif (ball.xcor() > self.colisL) and (ball.xcor() < self.colisR) and (ball.ycor() < self.colisU) and (ball.ycor() > self.colisUB):
        self.turtle.hideturtle()
        ball.dy *= -1
        self.colisU = 1000
        self.colisD = 1000
        self.colisL = 1000
        self.colisR = 1000
        score += 1
    elif (ball.xcor() > self.colisL) and (ball.xcor() < self.colisLB) and (ball.ycor() > self.colisD) and (ball.ycor() < self.colisU):
        self.turtle.hideturtle()
        ball.dx *= -1
        self.colisU = 1000
        self.colisD = 1000
        self.colisL = 1000
        self.colisR = 1000
        score += 1
    elif (ball.xcor() > self.colisR) and (ball.xcor() < self.colisRB) and (ball.ycor() > self.colisU) and (ball.ycor() < self.colisU):
        self.turtle.hideturtle()
        ball.dx *= -1
        self.colisU = 1000
        self.colisD = 1000
        self.colisL = 1000
        self.colisR = 1000
        score += 1

Answer 1

if…elif…else的语法

if test expression:
    Body of if
elif test expression:
    Body of elif
else: 
    Body of else