矩阵中加0 如一个矩阵是1行n列的，如10101010101010101010101010101010，现在我要把它变成1010101010101010 000010101010101010100000，可参考此程序-Matrix plus 0　such as a matrix of rows and n columns is one such 10101010101010101010101010101010, now I want to turn it into 1010101010101010 000010101010101010100000, you can refer to this procedure