67 lines
1.5 KiB
Python
67 lines
1.5 KiB
Python
import asyncio
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import time
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async def func1():
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print("hellword")
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await asyncio.sleep(3) # await是挂起，异步操作代码
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print("hellword1")
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async def func2():
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print("hellword2")
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await asyncio.sleep(2) # await是挂起，异步操作代码
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print("hellword3")
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async def func3():
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print("hellword4")
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await asyncio.sleep(4) # await是挂起，异步操作代码
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print("hellword5")
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async def main():
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tasks = [asyncio.create_task(func1()),
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asyncio.create_task(func2()),
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asyncio.create_task(func3())]
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await asyncio.wait(tasks)
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if __name__ == '__main__':
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t1 = time.time()
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asyncio.run(main())
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t2 = time.time()
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print(t2 - t1)
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# async def func1():
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# print("hellword")
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# # time.sleep(3) # 出现同步操作时候，异步会中断
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# await asyncio.sleep(3)# await是挂起，异步操作代码
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# print("hellword1")
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#
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#
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# async def func2():
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# print("hellword2")
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# # time.sleep(2)
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# await asyncio.sleep(2)# await是挂起，异步操作代码
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# print("hellword3")
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#
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#
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# async def func3():
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# print("hellword4")
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# # time.sleep(4)
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# await asyncio.sleep(4)# await是挂起，异步操作代码
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# print("hellword5")
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# if __name__ == '__main__':
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# f1 = func1()
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# f2 = func2()
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# f3 = func3()
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# t1 = time.time()3
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# tasks = [f1, f2, f3]
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# # 一次启动多个任务
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# asyncio.run(asyncio.wait(tasks))
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# t2 = time.time()
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# print(t2-t1)
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