【说明：源代码为作者在2012年9月参加的全国研究生数学建模所用代码。】功能：风矢量计算，通过中心距系数，计算最大梯度，从而求得风矢量方向与大小。-Descr iption: The source code for the code used by the author in September 2012 to participate in the National Graduate Mathematical Modeling. ] Function: the wind vector calculated by the center distance factor to calculate the maximum gradient, and thus obtain the direction and magnitude of the wind vector