Python_小说下载脚本

小说下载脚本

```python
#!/usr/bin/python3
# -*- coding:UTF-8 -*-
from bs4 import BeautifulSoup
import requests, sys

class downloader(object):

def __init__(self):
        self.server = 'http://www.biqukan.com/'
        self.target = 'http://www.biqukan.com/1_1094/'
        self.names = []            #存放章节名
        self.urls = []            #存放章节链接
        self.nums = 0            #章节数

def get_download_url(self):
        req = requests.get(url = self.target)
        html = req.text
        div_bf = BeautifulSoup(html,"html.parser")
        div = div_bf.find_all('div', class_ = 'listmain')
        a_bf = BeautifulSoup(str(div[0]),"html.parser")
        a = a_bf.find_all('a')
        self.nums = len(a[15:])                                #剔除不必要的章节，并统计章节数
        for each in a[15:]:
            self.names.append(each.string)
            self.urls.append(self.server + each.get('href'))

def get_contents(self, target):
        req = requests.get(url = target)
        html = req.text
        bf = BeautifulSoup(html)
        texts = bf.find_all('div', class_ = 'showtxt')
        texts = texts[0].text.replace('\xa0'*8,'\n\n')
        return texts

"""
    函数说明:将爬取的文章内容写入文件
    Parameters:
        name - 章节名称(string)
        path - 当前路径下,小说保存名称(string)
        text - 章节内容(string)
    Returns:
        无
    Modify:
        2017-09-13
    """
    def writer(self, name, path, text):
        write_flag = True
        with open(path, 'a', encoding='utf-8') as f:
            f.write(name + '\n')
            f.writelines(text)
            f.write('\n\n')

if __name__ == "__main__":
    dl = downloader()
    dl.get_download_url()
    print('《一年永恒》开始下载：')
    for i in range(dl.nums):
        dl.writer(dl.names[i], '一念永恒.txt', dl.get_contents(dl.urls[i]))
        sys.stdout.write("  已下载:%.3f%%" %  float(i/dl.nums) + '\r')
        sys.stdout.flush()
    print('《一年永恒》下载完成')

```

输出目录标题，主要是字符编码转换
```python
#!/usr/bin/python3
# *-* coding:utf-8 *-*
from bs4 import BeautifulSoup
import requests

if __name__ == "__main__":
     server = 'http://www.biqukan.com/'
     target = 'http://www.biqukan.com/1_1094/'
     req = requests.get(url = target)
     req.encoding="gbk" #换字符编码
     html = req.text
     div_bf = BeautifulSoup(html,"html.parser")
     div = div_bf.find_all('div', class_ = 'listmain')
     a_bf = BeautifulSoup(str(div[0]),"html.parser")
     a = a_bf.find_all('a')
     for each in a:
          print(each.string, server + each.get('href'))

```