．按照压缩存储的概念，只存储稀疏矩阵的非零元，以两个三元组｛i,j,e}来表示矩阵的非零元的行，列和数值，就确定了一个非零元．由此，稀疏矩阵可由表示非零元的三元数组及行列数确定． ２．用户输入数据作为三元组的行，列和非零元的个数，用逗号隔开．并输入非零元的行，列和数值． ３．本程序只对两个矩阵进行四则运算，所的结果矩阵应该另生成，用二维数组存放，并放入新的矩阵-. In accordance with the concept of compressed storage, only the sparse matrix storage of non-zero element to the two triples (i, j, e) to indicate the non-zero matrix element of the rows, columns and numerical, on the identification of a non-zero element. Thus, sparse matrix can be expressed non-zero element of the ternary array and determine the ranks of a few. 2. User input data as triples of rows, columns and the number of non-zero element, separated by commas. And enter the non-zero element of the rows, columns and numerical. 3. This procedure only for two four matrix computation, the results matrix should be another generation, with two-dimensional array of storage and placed in a new matrix