matlab双坐标y轴

days = 0:5:35;%使用两个 y 轴合并线图和条形图
conc = [515 420 370 250 135 120 60 20];
temp = [29 23 27 25 20 23 23 17];
yyaxis left
b = bar(days,temp);
yyaxis right
p = plot(days,conc);
plottools%这样就可以同步调节双坐标轴字体大小了

 https://blog.csdn.net/qq_42465670/article/details/101485412