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好了，这就是少更的原因。Acquisition and Conversion of Date and Time Data to String测试1. An event bubbling corresponds to triggering the same event on the upper layer.Petit Verdot-Little VitoThe 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.