python爬取csdn的文章内容

今天写了一个爬取csdn文章的

初学不太会，下面代码有时间可以自行优化

新建python文件，把我的代码复制进去保存

把依赖python install 一下

import re
import urllib.error
import urllib.request
import os
import tkinter as tk
from bs4 import BeautifulSoup


def main():
    baseurl = entry_url.get()
    # baseurl = "https://blog.csdn.net/qq_57420582/article/details/133796601?spm=1001.2014.3001.5502"
    getDate(baseurl)
    # print(''.join(datelist))
    win.destroy()

def getDate(baseurl):
    html = askURL(baseurl)
    soup = BeautifulSoup(html,"html.parser")
    datelist = []
    pattern = r'src="(.*?)"'
    htmlname = soup.find('h1', class_="title-article")
    htmlname = str(htmlname).replace("<p>", "").replace("</h1>", "")
    datelist.append(htmlname[48:] + "\n")
    htmledit = soup.find('div',class_="htmledit_views")
    for item in htmledit:
        item = str(item).replace("<p>","").replace("</p>","\n").replace("<br/>","\n").replace("<h2>","").replace("</h2>","\n").replace("<blockquote>","").replace("<!-- -->","").replace("</blockquote>","\n")
        # datelist.append(item)
        match = re.search(pattern, item)
        if match:
            url = match.group(1)
            datelist.append(url+"\n")
        else:
            datelist.append(item)
    desktop_path = os.path.join(os.path.expanduser("~"), "Desktop")  # 找到用户桌面的路径
    savepath = os.path.join(desktop_path, "csdn爬取文件")  # 文件夹名称
    saveDate(''.join(datelist),savepath,htmlname[48:])
    return datelist

def askURL(url):
    head = {
   "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36"}
    request=urllib.request.Request(url,headers=head)
    html=""
    try:
        response=urllib.request.urlopen(request)
        html=response.read().decode("utf-8")
        # print(html)
    except urllib.error.URLError as e:
        if hasattr(e,"code"):
            print(e.code)
        if hasattr(e,"reason"):
            print(e.reason)

    return html

def saveDate(datalist,savepath,savename):
    if not os.path.isdir(savepath):  # 判断是否存在该文件夹，若不存在则创建
        os.mkdir(savepath)  # 创建
    with open(savepath + "\\" + savename +".txt", 'w', encoding='utf-8') as file:  # 打开这个文件
        file.write(datalist)  # 打印文字

def frame_center(window, width, height):
    screen_width = window.winfo_screenwidth()
    screen_height = window.winfo_screenheight()
    x = (screen_width - width) // 2
    y = (screen_height - height) // 2
    window.geometry(f"{width}x{height}+{x}+{y}")


if __name__ == '__main__':
    win = tk.Tk()
    win.title('csdn爬取器')  # 窗口名字
    frame_center(win, 400, 200)  # 窗口大小
    win.resizable(False, False)

    label = tk.Label(win, text='请输入网址：')  # 窗口内文字
    label.pack(pady=10)  # 窗口内容间距

    label1 = tk.Label(win, text='（爬取需要一些时间哦！）')
    label1.pack(pady=0)

    entry_url = tk.Entry(win, width=30)  # 窗口内输入框
    entry_url.pack(pady=5)

    btn_record = tk.Button(win, text='开爬！', command=main)  # 窗口内按钮
    btn_record.pack(pady=40)
    print("爬取完毕")
    win.mainloop()

然后下载Axialis IconWorkshop