假设有一个能装入总体积为T的背包和n件体积分别为w1 , w2 , … , wn 的物品，能否从n件物品中挑选若干件恰好装满背包，即使w1 +w2 + … + wn=T，要求找出所有满足上述条件的解。-Suppose a total volume of T can be packed into a backpack and n pieces of volume, respectively w1, w2, ..., wn items, items can be selected from n nu