Python 异步操作文件 aiofiles

# 异步文件操作
# pip install aiofiles

# 基本用法
import asyncio
import aiofiles

async def wirte_demo():
    # 异步方式执行with操作,修改为 async with
    async with aiofiles.open("text.txt","w",encoding="utf-8") as fp:
        await fp.write("hello world ")
        print("数据写入成功")

async def read_demo():
    async with aiofiles.open("text.txt","r",encoding="utf-8") as fp:
        content = await fp.read()
        print(content)

async def read2_demo():
    async with aiofiles.open("text.txt","r",encoding="utf-8") as fp:
        # 读取每行
        async for line in fp:
            print(line)
if __name__ == "__main__":
    asyncio.run(wirte_demo())
    asyncio.run(read_demo())
    asyncio.run(read2_demo())