从n个不同价值、不同重量的物品中选取一部分，在不超过限定的总重量的前提下，使该部分的价值最大。这里假定的总重量不超过n个物品的总重量总和，且没有一样物品的重量超过限定的总重量-From the n different values, to select a part of the different weights of items under the premise of not more than the weight of the total, so that the portion of the maximum value. It is assumed that the total weight does not exceed the sum of the total weight of n items, and no items weighing more than the limit of the total weight