由支路关系求其他网络变量 t?0 R RR, R2 Voe rc+Eo t?0 R R RR i(t)=2(t)+1()= +—E+ R R2 R2 R R2由支路关系求其他网络变量 0 0 0 2 2 2 2 2 ( ) ( ) 0 t C RC v t V E E i t e t R R R R   − = = − +     ? 0 0 0 0 ( ) 0 t t t C RC RC RC C dv V E E V i t C e e e t dt R R R R − − −   = = − + = −     ?0 1 2 0 0 2 2 2 1 1 1 1 ( ) ( ) ( ) ( ) t RC C E i t i t i t E V e u t R R R R R           − = + = + + − +                  