折线图示例：
close all;clear;clc; x=1.0:0.1:2.7; %x轴上的数据，第一个值代表数据开始，第二个值代表间隔，第三个值代表终止 a=[6.4905,6.6283,6.7494,6.8902,6.9122,6.9461,6.9800,6.9897,6.9726,6.9859,6.910,6.9825,7.039,6.9796,6.9797,6.9889,6.9815,7.0041]; %a数据y值 plot(x,a,'-ok','MarkerSize',4,'LineWidth',0.5); %线性，颜色，标记 grid on axis([1.0,2.8,6.4,7.1]) %确定x轴与y轴框图大小 set(gca,'XTick',(0:0.2:2.8)) %x轴范围0-3，间隔0.1 set(gca,'YTick',(0:0.1:8)) %y轴范围0-8，间隔0.05 set(gca, 'XTick',[1.0, 1.2, 1.4, 1.6, 1.8, 2.0,2.2, 2.4, 2.6, 2.8]); set(gca, 'XTicklabel',{'1.0','1.2','1.4','1.6', '1.8','2.0','2.2','2.4','2.6','2.8'}); set(gca, 'YTick',[6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1]) set(gca, 'YTicklabel',{'6.4','6.5','6.6','6.7', '6.8','6.9','7.0','7.1'}); xlabel('ε','Fontname', 'Times New Roman','Fontsize',12); %x轴坐标描述 ylabel('E','Fontname', 'Times New Roman','Fontsize',11); %y轴坐标描述