你好,对于不同的Ie设置定值即可
Vcb = -3:0.1:3; Ic = 20*Vcb.^2-10*Vcb; Ie_arr = [0,20,40,60,80,100]; myjet=jet(numel(Ie_arr)); for i = 1:numel(Ie_arr) plot3(Ie_arr(i)*ones(size(Ic)), Vcb, Ic,'.-','color',myjet(i,:)); hold on end