weixin_55399173的博客

os.system('copy /b ' + '+'.join([f'temp\\{i}.ts' for i in range(len(tss_url))]) + f' temp\\new.mp4')

from concurrent.futures import ThreadPoolExecutorwith ThreadPoolExecutor(max_workers=20) as t: t.map(lambda args: download_ts(*args), [[ts_url, i, len(tss_url)] for i, ts_url in enumerate(tss_url)])

name = '123'name_list = ['123']print(f'{f"{name_list}":<20}, {name:<20},')['123'] , 123 ,if you want to use colon : to assign format, you need to use a string variable.print(f'{f"{name_list}":_<20}, {name:_<

shutil.rmtree('temp') # remove the dirctory includes files.

python3 确保安装安装 django 2.2.12命令如下：pip3 install django==2.2.12新建 django 项目(1) 切换到想要新建项目的目录我切换到了 ~/software/python 目录下

from selenium.webdriver import Chromefrom selenium.webdriver import ChromeOptionsoption = ChromeOptions()option.add_argument('--headless')b = Chrome(r'D:\software\chromedriver\chromedriver.exe', options=option)b.set_window_size(1366, 768)b.get('htt

import warningswarnings.filterwarnings("ignore",category=DeprecationWarning)

from bs4 import BeautifulSoupsoup = BeautifulSoup(html, 'html.parser')# 定位所有标签 findAll, 定位第一个 findlst = soup.findAll('a', attrs={'class': 'count-limit'}) # 是一个listi = soup.find('a', attrs={'class': 'count-limit'}) # 一个对象i.string # 该节点的文本内容i['href'

import openpyxlrwb = openpyxl.load_workbook('t.xlsx')data = [] # 存放读取的行数据for i in rwb['Sheet'][1]: # 'Sheet'为表单名称, 1 为第一行 data.append(i.value)print(data)

import osfor curDir, dirs, files in os.walk("test"): print("====================") print("现在的目录：" + curDir) print("该目录下包含的子目录：", dirs) print("该目录下包含的文件：", files)

def send(sending_msg): from email.mime.text import MIMEText from email.header import Header import smtplib import time msgObj = MIMEText(sending_msg) msgObj['From'] = Header("-", 'utf-8') msgObj['To'] = Header("-", 'utf-8')

import timenow = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())print(now)2005-12-01 12:34:45

# 选中节点, 执行代码btn = await page.J('.amp-no-login-zh')await page.evaluate('node => node.click()', btn)# 选中所有a节点, 如果a节点的文本为办事大厅则点击nodeList = await page.JJ('a')for node in nodeList: print(await page.evaluate('node => node.innerText', node)) i

async def setPage(page): //传入要设置的页面对象即可 width, height = screen_size() await page.setViewport({'width': width, 'height': height}) await page.evaluateOnNewDocument('Object.defineProperty(navigator,"webdriver",{get:()=>undefined})')def scree

import pyppeteerimport asynciofrom util import setPageasync def main(): browser = await pyppeteer.launch(headless=False, userDataDir='./userdata', args=['--disable-infobars']) page = (await browser.pages())[-1] await setPage(page) awai

import pyppeteerimport asyncioasync def main(): browser = await pyppeteer.launch(headless=False, userDataDir='./userdata', args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768})

import threadingfrom concurrent.futures.thread import ThreadPoolExecutorlock = threading.Lock()def func(x, y): """ 打印 x 次 y """ global lock for i in range(x): with lock: print(y)# 线程池最大线程数 3with ThreadPool

import asyncioimport pyppeteerasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars', f'--window-size=1366,768']) page = await browser.newPage()

import asyncioimport pyppeteerasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768}) await page.evaluateOnNe

import asyncioimport pyppeteerasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768}) await page.evaluateOnNe

import asyncioimport pyppeteerasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768}) await page.evaluateOnNe

class 节点中的空格 相当于 或，相当于有两个属性交集选择器：h2.name 没有空格（选择同时 满足标签名为 h2 和 class 为 name 的节点)后代选择器：h2 .name 有空格并集选择器：h2,.name

import asyncioimport pyppeteerasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768}) await page.evaluateOnNe

import asyncioimport pyppeteerasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768}) await page.evaluateOnNe

import pyppeteerimport asyncioasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768}) await page.evaluateOnNew

import pyppeteerimport asyncioasync def main(): browser = await pyppeteer.launch(headless=False, userDataDir='./userdata',args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768})

pip install pyppeteerimport pyppeteerimport asyncioasync def main(): browser = await pyppeteer.launch(headless=False, args=['--disable-infobars']) page = await browser.newPage() await page.setViewport({'width': 1366, 'height': 768}) a

import openpyxl# load_workbook() 加载一个xlsx文件,如果不存在,则报错,存在,不会覆盖,会续写wb = openpyxl.load_workbook('x1.xlsx')# 对xlsx文件操作之前,要 activewa = wb.active# 在最新的一个空行写入wa.append([111, 222, 333])# 保存wb.save('x1.xlsx')...

import openpyxl# Workbook()方法 将会在当前文件夹新建一个x1.xlsx,如果存在会覆盖.wb = openpyxl.Workbook('x1.xlsx')# save()方法 将会保存,如果不保存,将不会保存之前wb的所有存在,包括新建失败. wb.save('x1.xlsx')...

pip3 install openpyxlfrom openpyxl.cell.cell import ILLEGAL_CHARACTERS_REs = '帮我们解决问题，谢谢\x00\x00\x00\x00' # \x00为非法字符print(s.encode())s = ILLEGAL_CHARACTERS_RE.sub(r'', s)print(s.encode())b'\xe5\xb8\xae\xe6\x88\x91\xe4\xbb\xac\xe8\xa7\xa3\xe5\x86\x

a = r'\u8fd9\u662f\u4e2d\u6587'print(a)a = a.encode('latin-1').decode('unicode_escape')print(a)\u8fd9\u662f\u4e2d\u6587 # 原来的unicode字符串这是中文 # 中文字符串other：如果type(text) is bytes，那么text.decode(‘unicode_escape’)如果type(text) is str，那么text.encode(‘