衰项的插入 01234567 data2534|5716480963 插入X50 01234567 data25345715016480963 1 AMN ∑(n-i)= (n+…+1+0 n+1 n+1 1 n(n+1) (n+1)2 22 2 ( 1) ( 1) 1 ( 1 0) 1 1 ( ) 1 1 = 0 n n n n n n n i n n i = + + = + + + + − = + = AMN  表项的插入 25 34 57 16 48 09 63  0 1 2 3 4 5 6 7 data 插入 x 50 25 34 57 50 16 48 09 63  0 1 2 3 4 5 6 7 data 50 i