黄金分割法也叫0.618法，它是一种基于区间收缩的极小点搜索算法，既然极小点包含于搜索区间内，那么可以不断地缩小搜索区间，就可以使搜索区间的端点逼近到极小点-Also known as the Golden Section 0.618 method, which is based on interval contracted minimum point search algorithm, since the minimum point included in the search range, then you can continue to refine the search domain, you can make the search domain endpoints approximation to pole smaller