这是我在进入行业的第一个程序

“留作纪念，仅供学习”

#python 版本 2.7.18 import sys reload(sys) sys.setdefaultencoding('utf-8') import random import requests import re import os import time import sys import datetime header = [ {'User-Agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.76 Mobile Safari/537.36'}, {'User-Agent':'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50'}, {'User-Agent':'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)'}, {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1'}, {'User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36'}]

header 是用来伪装成浏览器发送请求，一般加上最好，header 信息可以通过浏览器查看，也可在网上搜索得到。

for x in range(8427249,8429942): u = str(x) print('当前动态URL：'.decode('utf-8').encode('gbk')+'.......................'+datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")+'..............'+u+'')#print(text_1) attempts = 0 success = False while attempts < 50 and not success: try: req = requests.get('需要抓取的网址'+ u +'.html',headers = header[random.randint(0,4)], timeout=60)# 向目标网站发送 get 请求 success = True except: attempts += 1 print('抛出异常.......重试中..................'.decode('utf-8').encode('gbk')+datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")+'') time.sleep(10) if attempts == 50: break # 永久等待

result = req.content
result = result.decode('gbk')    #  查看网页源代码 看到 charset=gbk，即网页是用的 gbk 编码，故要用 gkb 的编码方式来解码，否则中文就会乱码。
# print(result)
title_re = re.compile(r'<h1>(.*?)</h1>') 
title = re.findall(title_re,result)  
#print(title)
text_re = re.compile(r'<div id="htmlContent" class="contentbox clear">([\s\S]*?)</div>')
text = re.findall(text_re,result)
text = '\r\n'.join(text)  # 把两部分的正文连接成同一个个字符串
text = text.split('\r\n')
title = title[0]
text.insert(0,title)# 插入标题
#print(text)
text_1 = []     # 添加一个空列表，用来装处理后的正文
for sentence in text:
    sentence = sentence.strip()     # 去掉每一句两边的空格
    if ' ' in sentence:
        sentence = sentence.replace(' ','')    # 去掉句子中的  
        if '<br />' in sentence:
            sentence = sentence.replace('<br />','')    # 去掉句子中的 <br />
            text_1.append(sentence)
        else:
            text_1.append(sentence)
            
    elif '<br />' in sentence:
        sentence = sentence.replace('<br />','')
        text_1.append(sentence)
    elif '-->><p class="text-danger text-center mg0">本章未完，点击下一页继续阅读</p>' in sentence:
       
        text_1.append(sentence)
    else:
        text_1.append(sentence)
        count = text_1.count('')        # 统计列表中的空字符串
for i in range(count):
    text_1.remove('')           # 移除所有的空字符串
#print(text_1)

file = open('./test.txt','a')
for i in range(len(text_1)):
    s = str(text_1[i]).replace('[','').replace(']','')#去除[],这两行按数据不同，可以选择
    s = s.replace("'",'').replace(',','').replace('&nbsp;&nbsp;&nbsp;&nbsp;','') +'\n'   #去除单引号，逗号，每行末尾追加换行符
    file.write(s)
file.close()
print('抓取成功!'.decode('utf-8').encode('gbk')+'..............'+datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")+'')
time.sleep(10)