The key rings were fastened with hard plastic locks. The lock on the circular ring, Conrad saw, was cracked. On each key ring was a disk stamped with the number of keys that should be in the set. The disk on the circular ring was stamped “18.” Conrad counted the keys three times: there were only sixteen. He phoned Lieutenant Timothy Dial, the jail’s key-control officer, and said, “I’m going to need you to come down here.”
No base class to extend, no abstract methods to implement, no controller to coordinate with — just an object with the right shape.
，更多细节参见爱思助手
Материалы по теме:。关于这个话题，PDF资料提供了深入分析
全年各类生产安全事故共死亡18261人，比上年下降7.0%。工矿商贸企业就业人员十万人生产安全事故死亡人数1.040人，比上年下降4.5%；煤矿百万吨死亡人数0.045人，下降23.7%。道路交通事故万车死亡人数1.25人，下降4.6%。
Что думаешь? Оцени!