myrj

摘要： import pymysql import openpyxl import time def export_to_excel(worksheet, cursor, table): """ 将MySQL一个数据表导出到excel文件的一个表的函数 :param worksheet: 准备写入的exce 阅读全文

摘要： #!/usr/bin/python # -*- coding: UTF-8 -*- import random import string # 随机整数： print random.randint(1,50) # 随机选取0到100间的偶数： print random.randrange(0, 10 阅读全文

摘要： import requests from bs4 import BeautifulSoup url1 = "https://www.zzlian.com/33.html" html = requests.get(url1).content html=html.decode('utf-8') # py 阅读全文

摘要： import requests,sys from bs4 import BeautifulSoup def gethml(url): rr=requests.get(url) s=rr.content s.decode("ISO-8859-1") return s html=gethml(url) 阅读全文

摘要： 下载 markupbase 阅读全文

摘要： select * from mm1 where ma not regexp '[ABCDEF]' 查询ma字段中不包含ABCDEF中任意字符的所有记录select * from mm1 where ma regexp '[ABCDEF]' 查询ma字段中包含ABCDEF中任意字符的所有记录selec 阅读全文

摘要： url="https://www.liepin.com/campus/" import requests from bs4 import BeautifulSoup rr=requests.get(url) soup =BeautifulSoup(rr.text, "lxml") for itema 阅读全文

摘要： url="https://www.liepin.com/job/1932123793.shtml" import requests from bs4 import BeautifulSoup rr=requests.get(url) soup =BeautifulSoup(rr.text, "lxm 阅读全文

摘要： 今天写爬虫，遇到一个坑，提示[scrapy.core.scraper] ERROR: Spider must return request, item, or None, got 'Tag' in <GET https://www. 其实原因很意外，我在代码中使用了item,同时scrapy又用it 阅读全文

摘要： def __init__(self, *args, **kwargs): super(MmzzSpider, self).__init__(*args, **kwargs) # 这里是关键 self.count=0 def parse_item(self, response): soup =Beau 阅读全文