介绍了一种利用液体的流动过程来模拟ＲＣ电路暂态过程的方法。这种模拟方法不仅能够形象、直观的认识ＲＣ电路暂态过程中电容器极板上电荷和极板间电势差随时间的变化规律，而且还有助于对电容、流阻和泊肃叶定律等概念和规律的理解 A method to simulate the transient process of RC circuit by using the flow of liquid is introduced. This simulation method can not only vividly and intuitively understand the variation law of the potential difference between the capacitor plate and the plate during the transient process of the RC circuit, but also contribute to the concept of capacitance, flow resistance and Poiseuille’s law Regular understanding