本设计基本实现了计算乘客打的费用、租车行驶里程和显示总金额、里程、单价、时间等基本功能，但还有不足之处，有待进一步改进，以使计价器的功能更完善，跟人性化。-the basic design of computation passengers to fight the charges, Car Rental mileage and shows the total amount of mileage, and the price the basic function of time, but there are deficiencies, pending further improvements to make pricing for the perfect functions, with a human face.