程序功能：已知一定容量的背包和一定重量、一定个数的物品，背包容量、物品重量和物品个数可以自己设定，要求向背包中装入物品，使装入的物品恰好为被包的最大容量。若没有这样的物品组合，则输出“No available combination !”。-procedures functions : some capacity known knapsack and a certain weight, a certain number of items, bags capacity, weight and the number of objects can be set itself, the request to backpack loaded goods, so that the goods loaded just to be the largest package of capacity. If no such items portfolio, the output "No available combination!" .