说明：  电阻Resister的实际应用： 上拉下拉电阻(Pull-up,Pull-down)的处理方法。 0欧电阻的作用,跳线，熔丝等功能。
(Resister of the practical application of resistance: Pull-down resistor (Pull-up, Pull-down) approach. 0 The role of the European resistance, jumpers, fuses and other functions.)