设计一个稀疏矩阵计算器，要求能够：⑴输入并建立稀疏矩阵；⑵输出稀疏矩阵；⑶执行两个矩阵相加；⑷执行两个矩阵相乘；⑸求一个矩阵的转置矩阵；⑹求一个矩阵的逆矩阵（选做）。-Design of a sparse matrix calculator, requires the ability to: ⑴ input and the establishment sparse matrix　⑵ output sparse matrix　⑶ perform two matrices are added　⑷ perform two matrix multiplication　⑸ seeking a matrix transpose matrix　⑹ seeking a inverse matrix (Optional).