Python——爬取图片

大家好，我是@xiaomeng 小孟

欢迎大家阅读今天的文章————Python爬取图片（爬虫）

最近爬虫挺火的，所以我今天也来一个爬虫！

正文：

首先，我们先下载模块，pip install requests(不多说了)

#1.导入模块

import requests
import re

##2.填写网址并且请求 (网址需要你们自己填写，想什么图片就是什么)

#确定网址url='https://image.baidu.com/search/index?tn=baiduimage&ps=1&ct=201326592&lm=-1&cl=2&nc=1&ie=utf-8&word=%E6%B0%B4%E6%9E%9C'
form_header = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36","Host":"image.baidu.com","Accept-Language":"zh-CN,zh;q=0.9","Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9"}
res=requests.get(url, headers=form_header).text
print(res)

###3.正则表达式筛选数据

image_urls = re.findall('"objURL":"(.*?)",', res)

####4.利用for.....in：的句型找到图片网址


for image_url in image_urls:print(image_url)

#####5.设置图片名称，如果图片后缀没有，就添加一个‘.jpg’（正则筛选数据 re.search）

#图片名称image_name = image_url.split('/')[-1]print(image_name)image_end=re.search('(.jpg/.png/.jpeg/.gif)＄',image_name)if image_end == None:image_name = image_name + '.jpg'

######6. 下载保存图片（必须在同目录内新建一个 image 文件夹，才可以下载保存）

#保存image = requests.get(image_url).contentwith open('./image/%s'% image_name.split("&")[0], 'wb')as file:file.write(image)

以下为完整的源代码：

#请求import requests
import re#确定网址url='https://image.baidu.com/search/index?tn=baiduimage&ps=1&ct=201326592&lm=-1&cl=2&nc=1&ie=utf-8&word=%E6%B0%B4%E6%9E%9C'
form_header = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36","Host":"image.baidu.com","Accept-Language":"zh-CN,zh;q=0.9","Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9"}
res=requests.get(url, headers=form_header).text
print(res)
image_urls = re.findall('"objURL":"(.*?)",', res)for image_url in image_urls:print(image_url)#图片名称image_name = image_url.split('/')[-1]print(image_name)image_end=re.search('(.jpg/.png/.jpeg/.gif)＄',image_name)if image_end == None:image_name = image_name + '.jpg'#保存image = requests.get(image_url).contentwith open('./image/%s'% image_name.split("&")[0], 'wb')as file:file.write(image)

运行截图：