隐藏绘图中某些图形对象的MATLAB图例条目

x = 0:0.01:2*pi;
y1 = sin(x);
y2 = cos(x);

% 创建第一个图形，并将其设置为在图例中可见
plot(x, y1, 'DisplayName', 'sin(x)');

hold on;

% 创建第二个图形，并将其设置为在图例中不可见
plot(x, y2, 'HandleVisibility', 'off');

hold off;

% 创建图例
legend;

x = 0:0.01:2*pi;
y1 = sin(x);
y2 = cos(x);

% 创建第一个图形，并在图例中引用一个空的注解
h1 = plot(x, y1);
hAnnotation1 = get(h1,'Annotation');
hLegendEntry1 = get(hAnnotation1,'LegendInformation');
set(hLegendEntry1,'IconDisplayStyle','on'); % Include this line in the legend

hold on;

% 创建第二个图形，并在图例中引用一个空的注解
h2 = plot(x, y2);
hAnnotation2 = get(h2,'Annotation');
hLegendEntry2 = get(hAnnotation2,'LegendInformation');
set(hLegendEntry2,'IconDisplayStyle','off'); % Exclude this line from the legend

hold off;

% 创建图例
legend('sin(x)');