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figure
set(gcf,'unit','centimeters','Position',[30 12 8 6]);% 在屏幕(30,12)处显示8cm*6cm图窗
grid('on')                         % 网格 默认关
title('fontname{宋体}FileName')    % 标题
title('FileName','FontName','宋体') % 等效标题代码
legend('fontname{宋体}FileName1','fontname{宋体}FileName2' ,'Location','best','Box','off');% 图例
xlabel('fontsize{10.5}fontname{Times New Roman}itx/rmmm'); % x标签 it 斜体 
ylabel('fontsize{10.5}fontname{Times New Roman}itw/rmmm'); % y标签 rm 正体
set(gca,'FontName','Times New Roman','FontSize',10.5);         % 字体字号
%% 一个图去白框 (四个代码差不多，推荐使用第四个)
set(gca,'LooseInset',[0 0 0 0]);
set(gca,'LooseInset',get(gca,'TightInset'));
set(gca,'LooseInset',[0 0 0 0],'OuterPosition',[0 0 1 1]);

ax=gca;ax.OuterPosition=[0 0 1 1];Ti=ax.TightInset;Ti(Ti<.005)=.005;
ax.Position=ax.OuterPosition+[Ti([1 2]),- Ti(1) - Ti(3),- Ti(2) - Ti(4)];


%% 1行2列子图去白框示例
%左边下边空隙为0，长度0.5 高度1
set(gca,'LooseInset',[0 0 0 0],'OuterPosition',[0 0 0.5 1]);
%左边空隙为0.5，下边空隙为0，长度0,495(有的时候设置为0.5在打印时右边图框边没了) 高度1
set(gca,'LooseInset',[0 0 0 0],'OuterPosition',[0.5 0 0.495 1]);
%  等效去白框代码
set(gca,'LooseInset',get(gca,'TightInset'),'OuterPosition',[0 0 0.5 1]);
set(gca,'LooseInset',get(gca,'TightInset'),'OuterPosition',[0.5 0 0.495 1]);

ax=gca;ax.OuterPosition=[0 0 0.5 1];Ti=ax.TightInset;Ti(Ti<.005)=.005;
ax.Position=ax.OuterPosition+[Ti([1 2]),- Ti(1) - Ti(3),- Ti(2) - Ti(4)];
ax=gca;ax.OuterPosition=[0.5 0 0.5 1];Ti=ax.TightInset;Ti(Ti<.005)=.005;
ax.Position=ax.OuterPosition+[Ti([1 2]),- Ti(1) - Ti(3),- Ti(2) - Ti(4)];

%% 打印 
print('FileName','-dmeta')                        % '-dsvg' '-dmeta' 打印 矢量图
print('FileName','-dpng','-r600')                 % '-dpng' 打印 600 dpi 位图
%% 打印去白框，但图片比例不再是8:6
exportgraphics(gcf,'FileName.emf','ContentType','vector');% 打印 矢量图 (去白框)
exportgraphics(gcf,'FileName.png','Resolution',600);      % 打印 600 dpi 位图 (去白框)