china-province-mat 来源，文章中的中国国界线

http://cn.mathworks.com/matlabcentral/fileexchange/29462-china-province-mat

china.mat and china.province.mat contain the longitude and latitude values that define the political boundaries of China and its provinces.

Data source: http://nfgis.nsdi.gov.cn

Example of its use:
worldmap china;
load china.mat;
plotm(lat,long);