说明：  本程序是一个简易的矩阵类库，注意 1.本类库的矩阵、向量运算采用值传递 2.本类库的矩阵和向量的第一个元素的起始下标为1，不是0。这点尤其要注意。这和C语言中的数组不一样
(This procedure is a simple matrix class library, paying attention to one. The Library of matrix, vector calculations using the value of transfer 2. The Library of matrix and vector of the first element starting subscript of 1, not 0. This is especially necessary to pay attention to. This and the C language in a different array)