已知几个站点的经纬度，要求画出在全球的分布。

import pandas as pd
import matplotlib.pyplot as plt
import matplotlib as mpl
import cartopy.crs as ccrs
import cartopy.feature as cfeature
from cartopy.mpl.ticker import LongitudeFormatter, LatitudeFormatter
from adjustText import adjust_text

def plotsite(siteBLH):
    # Matplotlib利用rcParams控制图形属性
    mpl.rcParams['axes.unicode_minus']