[交流] metlab作图求助

clear;
x=0:1:100;
y=x;
plot(x,y);
hold on
%% x轴控制
label_x = 0:2:100;
plot(label_x,0,'*');
line_x = 0:0.2:100;
stem(line_x,line_x)

%% y轴控制
label_y1 = 0:2:50;
plot(0,label_y1,'*');
line_y1 = 0:0.2:50;
for i = 1:length(line_y1)
    plot([0,line_y1(i)],[line_y1(i),line_y1(i)])
end
label_y2 = 50:5:100;
plot(0,label_y2,'*');
line_y2 = 50:0.5:100;
for i = 1:length(line_y2)
    plot([0,line_y2(i)],[line_y2(i),line_y2(i)])
end