A.訪(fǎng)問(wèn)第i(1<=i<=n)個(gè)結(jié)點(diǎn)和求第i個(gè)結(jié)點(diǎn)的直接前驅(qū)(1<i<=n)
B.在第i(1<=i<=n)個(gè)結(jié)點(diǎn)后插入一個(gè)新結(jié)點(diǎn)
C.刪除第i(1<=i<=n)個(gè)結(jié)點(diǎn)
D.以上都不對(duì)
A.字符
B.數(shù)據(jù)元素
C.數(shù)據(jù)項(xiàng)
D.表元素