>> matrix=[1 , 2, 1, 2; 3, 4, 3, 4; 5, 6, 5, 6; 7, 8, 7, 8]  %采用逗號形式相隔
matrix =
     1     2     1     2
     3     4     3     4
     5     6     5     6
     7     8     7     8
>>  matrix=[1 2 1 2; 3 4 3 4; 5 6 5 6; 7 8 7 8]
matrix =
     1     2     1     2
     3     4     3     4
     5     6     5     6
     7     8     7     8
>>