A = [1,2,3,4,5,6]; B = [1,2,3,7,8,9]; C = [1,2,3,6,5,4,7,8,9]; D = [1,1,2,2,3,3] intersect(A,B); % ans = [1,2,3] union(A,B); % ans = [1,2,3,4,5,6,7,8,9] setdiff(A,B) % ans = [4,5,6] setdiff(A,C) % ans = Empty matrix: 1-by-0 ismember(1,A); % ans = 1 sort(C); % ans = [1,2,3,4,5,6,7,8,9] issorted(A); % ans = 1 setxor(A,B); % ans = [4,5,6,7,8,9] unique(D); % ans = [1,2,3]
c1 = intersect(f, D, 'rows')
结果