项目场景：

提示：这里简述项目相关背景：定时爬取外网的某个页面，并将需要的部分翻译为中文存入excel

接下了的，没学过的最好看一下

基本爬虫的学习

【爬虫】requests 结合 BeautifulSoup抓取网页数据_requests beautifulsoup 在界面中选取要抓取的元素-CSDN博客

问题描述 一：

提示：这里描述项目中遇到的问题：

以基本爬虫的学习的例子为例，换到你自己想要的url 运行不了 

 原因分析 一：

程序使用一段时间后会遇到HTTP Error 403: Forbidden错误。 因为在短时间内直接使用Get获取大量数据，会被服务器认为在对它进行攻击，所以拒绝我们的请求，自动把电脑IP封了。 

 解决方案 一：

我就不细讲了，看懂别人的就行：

python 爬虫禁止访问解决方法（403）_爬虫加了请求头还是403错误-CSDN博客

  我的是这样的

import random
import time


import requests
from bs4 import BeautifulSoup

url = "https://pubmed.ncbi.nlm.nih.gov/"

# List of user-agent strings
my_headers = [
    "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36",
    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36",
    "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0",
    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.75.14 (KHTML, like Gecko) Version/7.0.3 Safari/537.75.14",
    "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0)",
    'Mozilla/5.0 (Windows; U; Windows NT 5.1; it; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11',
    'Opera/9.25 (Windows NT 5.1; U; en)',
    'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)',
    'Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.5 (like Gecko) (Kubuntu)',
    'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.12) Gecko/20070731 Ubuntu/dapper-security Firefox/1.5.0.12',
    'Lynx/2.8.5rel.1 libwww-FM/2.14 SSL-MM/1.4.1 GNUTLS/1.2.9',
    "Mozilla/5.0 (X11; Linux i686) AppleWebKit/535.7 (KHTML, like Gecko) Ubuntu/11.04 Chromium/16.0.912.77 Chrome/16.0.912.77 Safari/535.7",
    "Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:10.0) Gecko/20100101 Firefox/10.0"
]

try:
    with requests.Session() as session:
        t = 0.1
        time.sleep(t)

        # 随机从列表中选择IP、Header
        #proxy = random.choice(proxy_list)
        header = random.choice(my_headers)
        headers = {"User-Agent": header}
        response = session.get(url, headers=headers)
        response.raise_for_status()  # Raises HTTPError for bad responses
        print(f"Response status using {header}: {response.status_code}")
        #print(response.content)  # 打印网页内容
        # 使用BeautifulSoup解析HTML内容
        soup = BeautifulSoup(response.content, 'html.parser')

        # Extract information from each 'li' element within 'items-list'
        paper_items = soup.select('ul.items-list li.full-docsum')
        for item in paper_items:
            paper_link = item.find('a')['href']  # Extract href attribute from <a> tag
            paper_title = item.find('a').text.strip()  # Extract text from <a> tag
            print(f"论文标题: {paper_title}")
            print(f"链接: {url}{paper_link}")
            print()
        # for header in my_headers:
        #     headers = {"User-Agent": header}
        #     response = session.get(url, headers=headers)
        #     response.raise_for_status()  # Raises HTTPError for bad responses
        #     print(f"Response status using {header}: {response.status_code}")

except requests.exceptions.HTTPError as errh:
    print(f"HTTP error occurred: {errh}")
except requests.exceptions.RequestException as err:
    print(f"Request error occurred: {err}")

问题描述 二：

使用python自带的translate 超多问题，又慢又多个单词组成的翻译不准确，且不到10次就崩了，

 解决方案  二：

东西给家人们找好了，就学吧

【笔记】Python3｜（一）用 Python 翻译文本的教程、代码与测试结果（第三方库 translate 和 腾讯 API 篇）_python调用有道翻译-CSDN博客

python实现调用腾讯云翻译API_腾讯翻译api怎么获取-CSDN博客

怎么存入ecxel  可以让 Al （gpt）帮你写

 上面实现 完整代码

写自己的腾讯云 SecretId 和 SecretKey 还有 url   

其中 从页面要获取的html源代码 放到Al (gtp)  让他帮你修改代码就行   不要直接用我的  

from tencentcloud.common import credential
from tencentcloud.common.profile.client_profile import ClientProfile
from tencentcloud.common.profile.http_profile import HttpProfile
from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
from tencentcloud.tmt.v20180321 import tmt_client, models

SecretId = "xxxxxxxxxxxxxxxxxxxxxxxxxx"
SecretKey = "xxxxxxxxxxxxxxxxxxxxxxxxx"

import random
import time
import pandas as pd
from requests.exceptions import RequestException
import requests
from bs4 import BeautifulSoup
from openpyxl import Workbook

url = "https://pubmed.ncbi.nlm.nih.gov/"
my_headers = [
    "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36",
    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36",
    "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0",
    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.75.14 (KHTML, like Gecko) Version/7.0.3 Safari/537.75.14",
    "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0)",
    'Mozilla/5.0 (Windows; U; Windows NT 5.1; it; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11',
    'Opera/9.25 (Windows NT 5.1; U; en)',
    'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)',
    'Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.5 (like Gecko) (Kubuntu)',
    'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.12) Gecko/20070731 Ubuntu/dapper-security Firefox/1.5.0.12',
    'Lynx/2.8.5rel.1 libwww-FM/2.14 SSL-MM/1.4.1 GNUTLS/1.2.9',
    "Mozilla/5.0 (X11; Linux i686) AppleWebKit/535.7 (KHTML, like Gecko) Ubuntu/11.04 Chromium/16.0.912.77 Chrome/16.0.912.77 Safari/535.7",
    "Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:10.0) Gecko/20100101 Firefox/10.0"
]


class Translator:
    def __init__(self, from_lang, to_lang):
        self.from_lang = from_lang
        self.to_lang = to_lang

    def translate(self, text):
        try:
            cred = credential.Credential(SecretId, SecretKey)
            httpProfile = HttpProfile()
            httpProfile.endpoint = "tmt.tencentcloudapi.com"

            clientProfile = ClientProfile()
            clientProfile.httpProfile = httpProfile
            client = tmt_client.TmtClient(cred, "ap-beijing", clientProfile)

            req = models.TextTranslateRequest()
            req.SourceText = text
            req.Source = self.from_lang
            req.Target = self.to_lang
            req.ProjectId = 0

            resp = client.TextTranslate(req)
            return resp.TargetText

        except TencentCloudSDKException as err:
            return err


def fetch_and_translate_papers(url, headers):
    try:
        with requests.Session() as session:
            t = 0.1
            time.sleep(t)
            translator = Translator(from_lang="en", to_lang="zh")
            header = random.choice(headers)
            headers = {"User-Agent": header}
            response = session.get(url, headers=headers)
            response.raise_for_status()
            print(f"Response status using {header}: {response.status_code}")

            soup = BeautifulSoup(response.content, 'html.parser')

            # Prepare data to store in DataFrame
            data = []

            paper_items = soup.select('ul.items-list li.full-docsum')
            for item in paper_items:
                paper_link = item.find('a')['href']  # Extract href attribute from <a> tag
                paper_title = item.find('a').text.strip()  # Extract text from <a> tag
                chinese_paper_title = translator.translate(paper_title)
                print(f"Paper Title: {paper_title}")
                print(f"论文标题: {chinese_paper_title}")
                print(f"链接: {url}{paper_link}")
                print()
                data.append({
                    'Paper Title': paper_title,
                    '论文标题': chinese_paper_title,
                    '链接': f"{url}{paper_link}",
                })

            # Create a DataFrame
            df = pd.DataFrame(data)

            # Save to Excel
            file_name = 'pubmed.xlsx'
            df.to_excel(file_name, index=False, engine='openpyxl')
            print(f"Data saved to {file_name}")

    except RequestException as e:
        print(f"Error fetching {url}: {e}")


# Call the function
fetch_and_translate_papers(url, my_headers)

让 al 修改的是这段

paper_items = soup.select('ul.items-list li.full-docsum')
            for item in paper_items:
                paper_link = item.find('a')['href']  # Extract href attribute from <a> tag
                paper_title = item.find('a').text.strip()  # Extract text from <a> tag
                chinese_paper_title = translator.translate(paper_title)
                print(f"Paper Title: {paper_title}")
                print(f"论文标题: {chinese_paper_title}")
                print(f"链接: {url}{paper_link}")
                print()
                data.append({
                    'Paper Title': paper_title,
                    '论文标题': chinese_paper_title,
                    '链接': f"{url}{paper_link}",
                })

从页面要获取的html源代码  这个也要教吗 懒了呀

就是你要爬的页面 在页面鼠标 右键源代码

 

 把你要爬的 html源代码 放al 让他办你改

问题描述 三：

怎么在自己的电脑定时执行 这个代码泥

解决方案 三：

东西也给家人们找好了，学吧，人懒不想总结太多了

 【Python】使用Windows任务计划程序定时运行Python脚本！-CSDN博客

 之后 要进行修改时间的可以看这个

 win10下设置定时任务，间隔每/分钟 - Acezhang - 博客园 (cnblogs.com)

 到最后有一点 小问题 ：

原因应该就是上面图片的没填  问题不大。 windows解决任务计划程序出错一个或多个指定的参数无效_计划任务一个或多个指定的参数无效-CSDN博客

 其中 管理员的单词懂吧选那个

人麻了  要定时还是有很多问题的

你的bat（脚本） 要运得了才可以  点击bat 如果闪退 就是不成功  

家人们 内容有点多 更多是自己去看别人的内容，我用了一天半完成的 不急慢慢来 

  居然没有打赏功能 可怜我写了半天