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，他所做出的仅是在某种意义上的局部最优解。-In problem solving always made in the current appears to be the best option. In other words, do not be optimal from an overall consideration, made by him are in a sense only the local optimal solution.