Python——函数不返回值

Question

我想编写一个函数来比较两个值，val1和val2，如果val1大于val2，则向a_points添加1分(像A队一样)，反之亦然(如果val2则向b_points添加1分)更大。) 如果这两个值是偶数，我不会向 a_points 或 b_points 添加任何点。

我的问题是test_val不会返回a_points或b_points的值。

a_points=0
b_points=0

def test_val(a_points,b_points,val1,val2):
    if val1 > val2:
        a_points+=1
        return a_points
    elif val2 > val1:
        b_points+=1
        return b_points
    elif val1==val2:
         pass

Here's a link to a visualization showing the problem.

Answer 1

考虑一下:

a0=5
a1=6
a2=7
b0=3
b1=6
b2=10
a_points=0
b_points=0

def test_val(a_points, b_points, val1, val2):
    if val1 > val2:
        a_points += 1
        return (a_points, b_points)
    elif val2 > val1:
        b_points += 1
        return (a_points, b_points)
    elif val1==val2:
        return (a_points, b_points)

a_points, b_points = test_val(a_points,b_points, a0, b0)
a_points, b_points = test_val(a_points,b_points, a1, b1)
a_points, b_points = test_val(a_points,b_points, a2, b2)

print(a_points, b_points)

祝你好运!