可用于解决如下问题：有人邀请A,B,C,D,E,F6个人参加一项会议，这6个人有些奇怪，因为他们有很多要求，已知：

1.A,B两人至少有1人参加会议

2.A,E,F3人中有2人参加会议

3.B和C两人一致决定，要么两人都去，要么两人都不去

4.A,D两人中只1人参加会议

5.C,D两人中也只要1人参加会议

6.如果D不去，那么E也决定不去

那么最后究竟有哪几个人参加了会议呢？

（清华Java课第一次课程作业答案）-Can be used to solve the following problem: Some people invited to A, B, C, D, E, F6 individuals to participate in a meeting, which 6 people strange, because they have a lot of requirements, known: 1.A, B, 1 at least two attend the meeting 2.A, E, F3, 2 people attending the meeting unanimously decided that the two 3.B and C, or both to go, or they do not go 4.A, D 1 only two participate in the meeting 5.C, D 1 as long as they also attend the meeting 6. If not D, then E has decided not to go exactly where you last few people attended the meeting? (Tsinghua University course work in Java classes for the first time the answer)