a00 a01 ao. n-1 C10 a11 ai.n-1 m×n= Cm-1,0am-1,1,.am-1,n-1 图4-3 请单鼠标左键换页!            = − − − − − −  1,0 1,1 1, 1 1 0 1 1 1, 1 0 0 0 1 0, 1 ... ... ... ... ... ... ... m m m n n n m n a a a a a a a a a A 图 4-3