作为格式合同的一种,彩票合同理应受相应的限制。然而,当碰到具体问题时,具体分析当事人的权利之争才是符合公平正义的立法精神的做法。此外,作为射幸合同的一种,符合合同约定的条件是发生相应法律效果的充分以及必要条件;彩票合同法律效果要达到,兑奖期限同样是必要条件。 As a form of contract, lottery contracts should be subject to appropriate restrictions. However, when encountering specific problems, the specific analysis of the parties’ rights dispute is in line with the fair and just legislative approach. In addition, as a kind of Shukai contract, the conditions that conform to the contractual agreement are the full and necessary conditions for the corresponding legal effect. The legal effect of the lottery contract is to be fulfilled, and the deadline for the awarding of the lottery is also a necessary condition.