[python]cartopy安装后测试代码

# 导入所需的库
import matplotlib as mpl
import matplotlib.pyplot as plt
import cartopy.crs as ccrs

# 创建画布以及ax
fig = plt.figure()
ax = fig.add_subplot(111, projection=ccrs.PlateCarree())

# 调用ax的方法画海岸线
ax.coastlines()

plt.show()