python cartopy绘制中国区域（包含国界、省界、十段线以及海南诸岛）
import numpy as npimport matplotlib.pyplot as pltimport cartopy.crs as ccrsimport cartopy.feature as cfeature#中国行政区域数据来源GMT中文社区：https://docs.gmt-china.org/latest/dataset-CN/CN-border/# 读取坐标数据with open(r'D:\GMT\data\china-geospatial-data-GB2312\CN-bo
