matlab将多条曲线绘制在一起

        figure;
        hold on;
        for i=:
            plot(x(i,:),y(i,:));
        end

x=:0.2:(*pi);
 hold on
 for i=:
     y=sin(x+i*pi/)+exp(x/);
     plot(x,y,'.-','Color',[(0.7+0.1/i)^ -(0.1*i) 0.5/i^],'LineWidth',+0.5*i);
     str{i}=['H=',mat2str(i*0.01)];
 end
 legend(str)
 hold off