列表元素对应相减
my_list1 = [1,2,3]
my_list2 = [3,5,8]
my_list3 = [5,9,7]
my_list = [my_list1,my_list2,my_list3]
print(my_list)
# print(len(my_list))
diff_list = []
for i in range(1,len(my_list)):
# print(i)
# print(my_list[i-1])
# print(my_list[i])
v = list(map(lambda x: x[0] - x[1], zip(my_list[i], my_list[i-1])))
diff_list.append(v)
print(diff_list)