摘要： series1=rand(1,5);series2=rand(1,5);bar1=bar([1:4:17],series1,'BarWidth',0.2,'FaceColor','b');hold on;bar2=bar([2:4:18],series2,'BarWidth',0.2,'FaceColor','c');legend('series1','series2');labelID = ['A';'B'; 'C'; 阅读全文