在这种情况下如何将两个“while”循环放在一起？

Question

我想设置max_chapter并执行函数，直到章节编号达到max_chapter 。 然后，书号增加 1 并执行相同的函数，直到章节号达到max_chapter 。

例如，Book 1 - Chapter 1~20，Book 原来是 Book 2 并执行函数 Book 2 - Chapter 1~20，...等等。

这是我的代码的一部分，我对此有疑问：

import requests
from bs4 import BeautifulSoup
import operator

def start(max_book):
    word_list = []
    book = 1
    chapter = 1
    while book <= max_book:
        url = ('http://www.holybible.or.kr/B_NIV/cgi/bibleftxt.php?VR=NIV&VL='
               + str(book) + '&CN=' + str(chapter) + '&CV=99')
        while chapter <= 1:
            source_code = requests.get(url).text
            soup = BeautifulSoup(source_code, "html.parser")
            for bible_text in soup.findAll('font', {'class': 'tk4l'}):
                content = bible_text.get_text()
                words = content.lower().split()
                for each_word in words:
                    word_list.append(each_word)
            chapter += 1
        else:
            book += 1
    print(word_list)
start(1)

Answer 1

IIUC ，您需要阅读每本书的前 20 章。

def Readchapters(max_books,max_chapters):
    book=1
    chapter=1
    while book <= max_books:

        while chapter<=max_chapters:
             print "reading book :",book ,"Chapter : ",chapter
             url = 'http://www.holybible.or.kr/B_NIV/cgi/bibleftxt.php?VR=NIV&VL={}&CN={}&CV=99'.format(book, chapter)
             source_code = requests.get(url).text
             soup = BeautifulSoup(source_code, "html.parser")
             '''
             #do your scraping here
             ................................
             ................................
             '''       
             chapter+=1 #move to next chapter
        book += 1 #move to next book
        chapter=1 #reset the chapter back
Readchapters(2,20)

输出

reading book : 1 Chapter :  1
reading book : 1 Chapter :  2
reading book : 1 Chapter :  3
reading book : 1 Chapter :  4
reading book : 1 Chapter :  5
reading book : 1 Chapter :  6
reading book : 1 Chapter :  7
reading book : 1 Chapter :  8
reading book : 1 Chapter :  9
reading book : 1 Chapter :  10
reading book : 1 Chapter :  11
reading book : 1 Chapter :  12
reading book : 1 Chapter :  13
reading book : 1 Chapter :  14
reading book : 1 Chapter :  15
reading book : 1 Chapter :  16
reading book : 1 Chapter :  17
reading book : 1 Chapter :  18
reading book : 1 Chapter :  19
reading book : 1 Chapter :  20
reading book : 2 Chapter :  1
reading book : 2 Chapter :  2
reading book : 2 Chapter :  3
reading book : 2 Chapter :  4
reading book : 2 Chapter :  5
reading book : 2 Chapter :  6
reading book : 2 Chapter :  7
reading book : 2 Chapter :  8
reading book : 2 Chapter :  9
reading book : 2 Chapter :  10
reading book : 2 Chapter :  11
reading book : 2 Chapter :  12
reading book : 2 Chapter :  13
reading book : 2 Chapter :  14
reading book : 2 Chapter :  15
reading book : 2 Chapter :  16
reading book : 2 Chapter :  17
reading book : 2 Chapter :  18
reading book : 2 Chapter :  19
reading book : 2 Chapter :  20

Answer 2

所以，我认为 str(chapter) 和 str(book) 都应该按顺序增加。 不？

您只需要在内部 while 循环中包含 url 的构造，以确保使用新的章节编号更新 url。

while book <= max_book:
    while chapter <= 1:
        url = 'http://www.holybible.or.kr/B_NIV/cgi/bibleftxt.php?VR=NIV&VL={}&CN={}&CV=99'.format(book, chapter)