乒乓球比赛(尚未理解)

# -*- coding: UTF-8 -*-
"""
两个乒乓球队进行比赛,各出三人。
甲队为a,b,c三人,乙队为x,y,z三人。
已抽签决定比赛名单。
有人向队员打听比赛的名单。
a说他不和x比,c说他不和x,z比,
请编程序找出三队赛手的名单。
"""

"""
for i in range(ord('x'), ord('z') + 1):
    for j in range(ord('x'), ord('z') + 1):
        if i != j:
            for k in range(ord('x'), ord('z') + 1):
                if (i != k) and (j != k):
                    if (i != ord('x')) and (k != ord('x')) and (k != ord('z')):
                        print 'order is a -- %st b -- %stc--%s' % (chr(i), chr(j), chr(k))
"""
"""
for a in ['x', 'y', 'z']:
    for b in ['x', 'y', 'z']:
        for c in ['x', 'y', 'z']:
            if (a != b) and (b != c) and (c != a) and (a != 'x') and (c != 'x') and (c != 'z'):
                print 'a和%s比赛,b和%s比赛,c和%s比赛' % (a, b, c)
"""