电容器是储存电能的元件,在直流电路中,当电容器充、放电时含容支路中有电流存在,当电路达到稳定状态后电容器所处的电路可看作断路含容电路的分析和计算是高考的热点,笔者认为解答含容电路问题时需注意以下几点: A capacitor is a component that stores electrical energy. In a DC circuit, when a capacitor is charged and discharged, current is contained in a capacitive branch. When the circuit reaches a stable state, the circuit where the capacitor is located can be regarded as the analysis and calculation of the open circuit. The hottest point of the college entrance examination, the author thinks that the following points should be paid attention to when answering the content-containing circuit problem: