最近用到了GLASS的LAI产品，但这个产品的文件夹分得很细，我需要的影像又有8个瓦片，一个一个点击很麻烦，于是探索了批量下载的方法

一、下载1幅

import requests
import re
import os
import requests
import re

# 网页URL

url = "http://www.glass.umd.edu/LAI/MODIS/250m/2003/009/"  #网址

# 本地文件夹路径
local_folder = r"F:\BH\1.data\2.area data\LAI"

# 确保本地文件夹存在
if not os.path.exists(local_folder):
    os.makedirs(local_folder)

# 发送HTTP请求获取网页内容
response = requests.get(url)

# 使用正则表达式提取文件链接
file_links = re.findall(r'href=[\'"]?([^\'" >]+)', response.text)

# 遍历文件链接，下载包含特定关键词的文件 hdf
for file_link in file_links:
    if ".hdf" in file_link and "h26v05" in file_link:
        # 下载文件
        file_url = url + "/" + file_link
        file_name = os.path.join(local_folder, file_link.split("/")[-1])
        with open(file_name, 'wb') as f:
            response_file = requests.get(file_url)
            f.write(response_file.content)

print("ok")

二、下载n

import requests
import re
import os
import requests
import re

# 网页URL
years=['2003','2004','2005','2006','2007','2008','2009','2010','2011','2012','2013','2014','2015','2016','2017','2018','2019','2020','2021']
days=['001','009','017','025','033','041','049','057','065','073','081','089','097',
     '105','113','121','129','137','145','153','161','169','177','185','193',
     '201','209','217','225','233','241','249','257','265','273','281','289','297',
     '305','313','321','329','337','345','353','361']

for i in range(0,len(years)):
    for j in range(0,len(days)):
        url = "http://www.glass.umd.edu/LAI/MODIS/250m/"+years[i]+"/"+days[j]+"/"  #网址
        
        # 本地文件夹路径
        local_folder = r"F:\BH\1.data\2.area data\LAI"
        
        # 确保本地文件夹存在
        if not os.path.exists(local_folder):
            os.makedirs(local_folder)
        
        # 发送HTTP请求获取网页内容
        response = requests.get(url)
        
        # 使用正则表达式提取文件链接
        file_links = re.findall(r'href=[\'"]?([^\'" >]+)', response.text)
        
        # 遍历文件链接，下载包含特定关键词的文件 hdf
        for file_link in file_links:
            if ".hdf" in file_link and ("h24v05" in file_link or "h25v05" in file_link or "h26v05" in file_link or "h27v05" in file_link 
                                        or "h24v06" in file_link or "h25v06" in file_link or "h26v06" in file_link or "h27v06" in file_link or "h28v06" in file_link ):
                # 下载文件
                file_url = url + "/" + file_link
                file_name = os.path.join(local_folder, file_link.split("/")[-1])
                with open(file_name, 'wb') as f:
                    response_file = requests.get(file_url)
                    f.write(response_file.content)

print("ok")