matlab 中bar3柱状图颜色显示问题

M=rand(30,20); figure subplot(1,2,1) h=bar3(M) for n=1:numel(h) cdata=get(h(n),zdata); set(h(n),cdata,cdata,facecolor,interp) end subplot(1,2,2) h=bar3(M) for n=1:numel(h) cdata=get(h(n),zdata); cdata=repmat(max(cdata,[],2),1,4); set(h(n),cdata,cdata,facecolor,flat) end