电力系统分析计算程序

				function a = add(a,data)								global Bus								a.n = a.n + length(data(1,:));				a.con = [a.con; data];				[a.bus1,a.v1] = getbus(Bus,a.con(:,1));				[a.bus2,a.v2] = getbus(Bus,a.con(:,2));