《python爬虫伊始（百度首页）》

来源：互联网发布：信息技术网络研修心得编辑：程序博客网时间：2024/06/07 21:01

新手爬虫简单的几行代码就能实现

这里需要使用到requests库

在cmd中输入pip install requests 就能完成requests库的下载

下面开始简单的代码

#CrawWeb.pyimport requestsurl = "http://www.baidu.com"try:    r = requests.get(url)    r.raise_for_status()    r.encoding = r.apparent_encoding    print(r.text[:1000])except:    print("error")

<!DOCTYPE html>
<html> <head><meta http-equiv=content-type content=text/html;charset=utf-8><meta http-equiv=X-UA-Compatible content=IE=Edge><meta content=always name=referrer><link rel=stylesheet type=text/css href=http://s1.bdstatic.com/r/www/cache/bdorz/baidu.min.css><title>百度一下，你就知道</title></head> <body link=#0000cc> <div id=wrapper> <div id=head> <div class=head_wrapper> <div class=s_form> <div class=s_form_wrapper> <div id=lg> <img hidefocus=true src=//www.baidu.com/img/bd_logo1.png width=270 height=129> </div> <form id=form name=f action=//www.baidu.com/s class=fm> <input type=hidden name=bdorz_come value=1> <input type=hidden name=ie value=utf-8> <input type=hidden name=f value=8> <input type=hidden name=rsv_bp value=1> <input type=hidden name=rsv_idx value=1> <input type=hidden name=tn value=baidu><span class="bg s_ipt_wr"><input id=kw name=wd class=s_ipt value maxlength=255 autocomplete=off autofocus></span><span class="bg s_btn_wr"><input type=submit id=su va

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