[已解决]python 创建文件保存问题

代码小白liu

import requests
import re
import os
url = "https://www.qiushibaike.com/imgrank/"
if not os.path.exists("./糗图"):
    os.mkdir("./糗图")
headers = {
    "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36"
}

response = requests.get(url, headers=headers).text
img_src = '<div class="thumb">.*?<img src="(.*?) alt='
img_src_list = re.findall(img_src,response,re.S)

for src in img_src_list:
    src = "http:" + src
    img_data = requests.get(url=src,headers=headers).content
    img_name = src.split("/")[-1]
    img_path = "./糗图/" + img_name
    with open(r"img_path", "wb") as f:
        f.write(img_data)
        print(img_name, "爬取结束！！")


此段代码可以运行成功，但是文件夹未保存到数据，是为什么那？

最佳答案

月排行榜 / 总排行榜

Twilight6

2021-7-13 08:32:02

open 中你填文件路径填写成了字符串 img_path 了，建议 src 的 http 改为 https 爬取速度可能会更快

而且你正则表达式中 "(.*?) 少了右引号，会影响写入文件时的文件名，参考代码：

import requests
import re
import os
url = "https://www.qiushibaike.com/imgrank/"
if not os.path.exists("./糗图"):
    os.mkdir("./糗图")
headers = {
    "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36"
}

response = requests.get(url, headers=headers).text
img_src = '<div class="thumb">.*?<img src="(.*?)" alt='
img_src_list = re.findall(img_src,response,re.S)

for src in img_src_list:
    src = "https:" + src
    img_data = requests.get(url=src,headers=headers).content
    img_name = src.split("/")[-1]
    img_path = "./糗图/" + img_name
    with open(img_path, "wb") as f:
        f.write(img_data)
        print(img_name, "爬取结束！！")

跳转到最佳答案楼层

Twilight6

open 中你填文件路径填写成了字符串 img_path 了，建议 src 的 http 改为 https 爬取速度可能会更快

而且你正则表达式中 "(.*?) 少了右引号，会影响写入文件时的文件名，参考代码：

import requests
import re
import os
url = "https://www.qiushibaike.com/imgrank/"
if not os.path.exists("./糗图"):
    os.mkdir("./糗图")
headers = {
    "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36"
}

response = requests.get(url, headers=headers).text
img_src = '<div class="thumb">.*?<img src="(.*?)" alt='
img_src_list = re.findall(img_src,response,re.S)

for src in img_src_list:
    src = "https:" + src
    img_data = requests.get(url=src,headers=headers).content
    img_name = src.split("/")[-1]
    img_path = "./糗图/" + img_name
    with open(img_path, "wb") as f:
        f.write(img_data)
        print(img_name, "爬取结束！！")