python - 需要找到集合中不大于给定变量的最大数字

Question

我有一组权重和一个整数所需的权重。我需要删除列表中最接近但不大于所需权重的元素，并将其与实际权重相关联。到目前为止，我的代码如下所示:

desired_weight = weights[0]
for i in weights:
 for x in weights:
    if x>i:
        if desired_weight <= x:
            actual_weight = desired_weight
            weights.remove()

Answer 1

假设我明白你在问什么，

actual_weight = max([x for x in weights if x <= desired_weight])