1 clear all;
 2 %%确定横坐标的范围
 3 x=[8 20 36 24 12];
 4 t=0:0.1:3;
 5 t1=randn(1,1000);
 6 x1=[-2+3i,+4j,1-7j];
 7 real=[-2 3 1];
 8 imag=[3 4 -7];
 9 %%绘制二维图形
10 subplot(3,4,1);
11 pie(x,[0 0 0 0 0]);
12 title(\'饼状图\');
13 subplot(3,4,2);
14 bar(x,\'group\');
15 title(\'垂直条形图\');
16 subplot(3,4,3);
17 bar(x,\'stack\');
18 title(\'累加值为纵坐标的垂直条形图\');
19 subplot(3,4,4);
20 barh(x,\'group\');
21 title(\'水平条形图\');
22 subplot(3,4,5);
23 barh(x,\'stack\');
24 title(\'累加值为纵坐标的水平条形图\');
25 subplot(3,4,6);
26 stairs(t);
27 title(\'以序号为横坐标的梯形图\');
28 subplot(3,4,7);
29 stairs(t,sin(t));
30 title(\'以X为横坐标的梯形图\');
31 subplot(3,4,8);
32 hist(t1,(-4:0.1:4));
33 title(\'概率分布图\');
34 subplot(3,4,9);
35 compass(x1);
36 title(\'以实部为矢量\');
37 subplot(3,4,10);
38 compass(x1,2*x1);
39 title(\'以复数坐标系的原点为起点\');
40 subplot(3,4,11);
41 feather(real);
42 title(\'以实部为矢量\');
43 subplot(3,4,12);
44 feather(real,imag);
45 title(\'以复数坐标系的原点为起点\');