示例代码：使用Selenium进行动态内容抓取
fromseleniumimportwebdriverurl='https://example.com'driver=webdriver.Chrome()driver.get(url)#等待页面加载完成😎importtimetime.sleep(5)#提取数据data=driver.find_elements_by_class_name('target-class')foritemindata:print(item.text)driver.quit()
假设我们有一组销售数据
data={'date':'2023-01-01','2023-01-02','2023-01-03','2023-01-04','2023-01-05','sales':100,200,150,250,300}
df=pd.DataFrame(data)df'date'=pd.to_datetime(df'date')
示例代码：并发处理与错误恢复
pythonimportrequestsfromconcurrent.futuresimportThreadPoolExecutor
deffetchdata(url):try:response=requests.get(url)response.raisefor_status()returnresponse.textexceptrequests.exceptions.RequestExceptionase:returnNone
urls='https://example.com','https://example.org','https://example.net'
classDataParserError(Exception):pass
deffetchdata(url):try:response=requests.get(url)ifresponse.statuscode!=200:raiseCustomHTTPError(f"HTTPerror:{response.status_code}")returnresponse.textexceptRequestExceptionase:raiseCustomHTTPError(f"Requestexception:{str(e)}")
示例代码：数据格式异常处理
frombs4importBeautifulSoup,BeautifulSoupScrapingExceptiondefparse_data(html):try:soup=BeautifulSoup(html,'html.parser')data=soup.find_all('div',class_='target-class')returnitem.textforitemindataexceptScrapingExceptionase:print(f"Dataparsingerror:{e}")returnhtml="Data1"data=parse_data(html)print(data)
校对：王小丫(Am3dtl2qeIoFgBCQYdeo1oprDSF0aqUS3D)