解决背包的取舍问题，问选择多少个不超过背包的重量的物品．能使价值最大．-solve knapsack choice question about the choice of the number does not exceed the weight of the backpack items. Make the greatest value.

遗传算法用于求解多目标背包问题，学包括基本的选择、杂交、变异等遗传算子.-Genetic algorithm for solving multi-objective knapsack problem, learning the basic choice, hybridization, mutation and other genetic operators.