matlab gui多条线 分别显示，高亮

x = linspace(0,10);
y1 = sin(x);
y2 = cos(x);
y3 = sin(x) + cos(x);
y4 = sin(x) .* cos(x);
plot(x,y1,x,y2,x,y3,x,y4)
hLeg = legend('Line 1','Line 2','Line 3','Line 4');
hLeg.ItemHitFcn = @tmp;
function tmp(src,event)
% This callback toggles the visibility of the line
if strcmp(event.Peer.Visible,'on')   % If current line is visible
    event.Peer.Visible = 'off';      %   Set the visibility to 'off'
else                                 % Else
    event.Peer.Visible = 'on';       %   Set the visibility to 'on'
end
end
 
function tmp(src,event)
% This callback causes the line to "blink"
for id = 1:3                        % Repeat 3 times
    event.Peer.LineWidth = 3;       % Set line width to 3
    pause(0.2)                      % Pause 0.2 seconds
    event.Peer.LineWidth = 0.5;     % Set line width to 0.5
    pause(0.2)                      % Pause 0.2 seconds
end