中文说明：最近两年比较流行的量子进化算法（QEA），能够求解一般的优化问题。算例是一个典型的背包问题（离散二值问题）。
English Description：
Quantum evolutionary algorithm (QEA), which is popular in recent two years, can solve general optimization problems. The example is a typical knapsack problem (discrete binary problem).