注释，已失效。

import os
import requests
import PyPDF2

make the dir

print(os.getcwd())
print("Please input the day like yyyymmdd:")
date=input()
dir=os.getcwd()+'\'+date

if(not os.path.exists(dir)):
os.makedirs(dir)
os.chdir(dir)

download the page from A001 to M020############

def downpdf(url1,page1):
res=requests.get(url1)
if res.status_code ==200:
with open(page1+".pdf",'wb') as f:
f.write(res.content)
else:
return(False)
print(page1+".pdf has been download!")
return(True)

check the page

page=['A001', 'A002', 'A003', 'A004', 'A005', 'A006', 'A007', 'A008', 'A009', 'A010', 'A011', 'A012', 'A013', 'A014', 'A015', 'A016', 'A017', 'A018', 'A019', 'A020', 'B001', 'B002', 'B003', 'B004', 'B005', 'B006', 'B007', 'B008', 'B009', 'B010', 'B011', 'B012', 'B013', 'B014', 'B015', 'B016', 'B017', 'B018', 'B019', 'B020', 'C001', 'C002', 'C003', 'C004', 'C005', 'C006', 'C007', 'C008', 'C009', 'C010', 'C011', 'C012', 'C013', 'C014', 'C015', 'C016', 'C017', 'C018', 'C019', 'C020', 'D001', 'D002', 'D003', 'D004', 'D005', 'D006', 'D007', 'D008', 'D009', 'D010', 'D011', 'D012', 'D013', 'D014', 'D015', 'D016', 'D017', 'D018', 'D019', 'D020', 'M001', 'M002', 'M003', 'M004', 'M005', 'M006', 'M007', 'M008', 'M009', 'M010', 'M011', 'M012', 'M013', 'M014', 'M015', 'M016', 'M017', 'M018', 'M019', 'M020']
for i in page:
url='http://online.wsj.com/public/resources/documents/print/WSJ_-'+i+'-'+date+'.pdf'
downpdf(url,i)

com='pdftk f:\py\'+date+'\*.pdf cat output f:\py\WSJ'+date+'.pdf'

a=os.system(com)
if a==0:
print("the pdf has been combined!")

if os.system('rmdir /s /q f:\py\'+date)==0:
print("the folden has been delet!")

http://online.wsj.com/public/resources/documents/print/WSJ_-A002-20180906.pdf