clcclearclose all[P,map]=(imread('E:\研究生资料\研究生\小论文\30.9588-33.1053——120.0092-125.0024.PNG'));m_image([120.0092 125.0024],[30.9588 33.1053],flipdim(P,1));alpha(0.8);%%显示弱化，成功m_gshhs_f('save','mycoast')% m_coast('color','k');m_usercoast('mycoast','patch',[1 1 0],'edgecolor',[0.5 0.5 0.5]);m_grid('linest',':');hold on;set(gca,'ydir','normal');这是绘制的代码