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The core of JIT production is to eliminate all waste, and its realization way is to realize the goal of "zero inventory". The essence of JIT production mode is that it is an ideological system of continuous improvement. Its focus is to put an end to all waste. It responds to customers as quickly as possible with the lowest possible cost and the highest possible quality, thus improving the competitiveness of enterprises. The implementation process of JIT is to continuously improve the production process endlessly. By increasing the efficiency of resource utilization, eliminating various wastes, reducing the cost of enterprises, and providing high-quality services to meet the market demand, the purpose of increasing profits and enhancing core competitiveness of enterprises is achieved.P.sendline (payload2)近一年时间，李跛子第一次开口，颤声将当日尹旭杀人逃亡后，马氏与吴有才逼婚，他带着玉娘连夜逃亡谁知被追上。玉米听了这森寒的声音，不禁打了个冷战，他乖乖地蹲在篓子里，耳听着两人从身边走过，连大气也不敢出。I follow the execution process of this small program: first, I take exp and "\ +" as parameters, call the calculation (String, String) method in the AbstractCalculator class, call split () of the same kind in the calculation (String, String), then call the calculation (int, int) method, enter the subclass from this method, after executing return num1 + num2, return the value to the AbstractCalculator class, assign it to result, and print it out. This just verifies our thinking at the beginning.自小有服务社会志向的张志杰（梁朝伟），中三毕业后，便考进少年警察训练学校。在学堂中，他认识了四位好友，他们同甘共苦。毕业后，杰埋头工作，在警界里平步青云，成就直迫在警界的同父异母兄弟张家明（戴志卫）。杰因工作而冷落女友谢颖之（张曼玉），更被好友乔志豪（关礼杰）乘虚而入。杰失意之际，接受了暗恋他多年的林佩贤（黄造时）。明之妹张家汶（刘嘉玲）恋上杰之师兄倪（刘青云）。一次行动中，峰因杰一时迟疑而被贼车撞倒，从此一足微拐，被迫退出警界。峰意志消沉，毅然离开香港。后回港与汶成婚，但已变成一个亡命杀手。明牵涉一宗巨款骗案里，被买凶追杀，杀手竟是他的妹夫峰。峰不杙下手，但明则用杰的配枪自尽，杰因此被怀疑与明之死有关，杰展开调查之际，发觉此案牵涉众多亲人及朋友，他竟欲一人顶罪......倭人可比金人、鞑子更招人恨。