import urllib.request
from bs4 import BeautifulSoup
def get_link(page): # 寻找链接的href
linkData = []
for page in page.find_all('td'):
links = page.select("a")
for each in links:
# if str(each.get('href'))[:1] == '/': 过滤if代码
data=each.get('href')
linkData.append(data)
return(linkData)
def findAll(): #主函数
url='http://www.nco.ncep.noaa.gov/pmb/codes/nwprod/nosofs.v3.0.4/'
page = urllib.request.urlopen(url).read()
soup = BeautifulSoup(page,'lxml') #利用BeautifulSoup取得网页代码
links=get_link(soup)
# print(links)
for childLink in links:
#print(childLink )
links2=url+childLink
print(links2 )
