说明：  计算层合板刚度，和最先一层失效载荷！程序具有通用性，能够对任意工程弹性常数和几何尺寸的层合板进行刚度和强度分析！非常适合最为哈尔滨工业大学复合材料与工程专业的复合材料力学上机大作业
(Laminate stiffness calculation, and the first layer of failure load! Program is versatile, capable of any engineering elastic constants and geometry of laminates for stiffness and strength analysis! Very suitable for most Harbin Institute of Technology composite materials and engineering mechanics of composite materials on the plane big job)