py课的作业爬妹子图有借鉴的可以下面回复

建龙鱼

import urllib.request

picsite = []

url = "http://jandan.net/girl/"
i = int(input("输入要爬行的页数："))

def openurl(url):
    req = urllib.request.Request(url)
    req.add_header('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36')
    response = urllib.request.urlopen(req)
    html = response.read().decode('utf-8')
    return html

#找图片地址
def find_picture(url):
    a = b =0
    html = openurl(url)
   
    while not(a == 8):
        a = html.find("img src=", b) + 9
        b = html.find('"', a)
        if a != 8:
            picsite.append("http:" + html[a:b])
   
#找下一页的地址
def openurl_next(url):
    html = openurl(url)

    a = html.find("Older Comments") + 22
    b = html.find('"', a)

    url = "http:" + html[a:b]
    return url

#下载图片
def down_picture():
    for i in range(len(picsite)):
        url = picsite[i]
        downpicture = urllib.request.urlopen(url)
        apt = downpicture.read()

        with open(str(i) + '.jpg', "wb") as f:
            f.write(apt)

#开始运行程序
def start(i):
    aurl = url
    while i:
        find_picture(aurl)
        next_url = openurl_next(aurl)
        aurl = next_url
        i -= 1
    down_picture()

if __name__ == "__main__":
    start(i)