笔记

import sys print(__name__) if __name__ == ‘__main__’: p…

# expression for item in iterable if condition # list推导…

# 本质是迭代器 # 可以迭代, 节省内存 def generator(): try: yield [i fo…

import os import asyncio import aiohttp import aiofiles…

“””Module providing a function printing python version.…

import time import threading from concurrent.futures im…

读文件 import pandas as pd df = pd.read_excel(‘data.xlsx’)…

import asyncio import threading # 传入name参数: async def h…

import asyncio import time print(“\n\n=== 2. 异步模式开始 (请注…

集合 # set s1 = {1, 2, 3, 4} print(type(s1)) print(s1) s1…