本文采用Verilog HDL描述语言实现自动售货机系统的销售动作，用有限状态机进行系统状态描述，自动售货机通电复位时，自动进入系统初始状态，本文设计的自动售货机控制系统主要可以实现投币处理、计算投币总额、输出商品，输出找零、余额计算并显示等功能。-This verilog hdl describe language used for automatic machines system of action, with a limited system of state, state, the vending machine is the power of the system resets when the initial condition, the design of the vending machine control system can be achieved mainly into the slot, the total output of products, output, change and balance computing and display the functions.