用遗传算法解决背包问题，遗传算法的优势在于解决优化问题，对背包问题进行编码，然后随机产生使出样本，通过交叉，编译等操作来找到优化问题的解-Using genetic algorithms to solve knapsack problem, the advantage of genetic algorithms to solve optimization problem, knapsack problem is encoded, and then resorted to randomly gen