贪心算法（又称贪婪算法）是指，在对问题求解时，总是做出在当前看来是最好的选择。也就是说，不从整体最优上加以考虑，他所做出的是在某种意义上的局部最优解。(Greedy algorithm (also called greedy algorithm) means that when solving a problem, it always makes the best choice at present. That is to say, not considering the overall optimization, what he has made is the local optimal solution in some sense.)