递归遍历列表，计算每n个元素处两个项目之间的百分比变化

def calculatePercentageChange(lst, n, index1, index2):
    if index1 >= len(lst) or index2 >= len(lst):
        print("索引超出范围")
        return
    
    if index1 == index2:
        print("两个索引不能相同")
        return
    
    if index1 > index2:
        index1, index2 = index2, index1
    
    if index2 - index1 < n:
        print("两个索引之间的间隔不能小于n")
        return
    
    if index1 % n != 0:
        index1 = index1 + (n - (index1 % n))
    
    if index2 % n != 0:
        index2 = index2 + (n - (index2 % n))
    
    if index1 >= index2:
        print("无法计算百分比变化")
        return
    
    percentage_changes = []
    
    for i in range(index1 + n, index2 + 1, n):
        current = lst[i]
        previous = lst[i - n]
        change = (current - previous) / previous * 100
        percentage_changes.append(change)
        
    return percentage_changes