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import asyncio
async def main():
await asyncio.sleep(1)
async def nested():
return 42
async def run_nested():
nested() # 会报错,因为协程是可等待对象
print(await nested())
并发处理多任务举例,计算阶乘,使用 asyncio.gather()
async def factorial(name, number):
f = 1
for i in range(2, number + 1):
print(f"Task {name} : compute factorial({i})...")
await asyncio.sleep(1)
f *= i
print(f"Task {name}: factorial({number}) = {f}")
async def factorial_main():
await asyncio.gather(
factorial("A", 2),
factorial("B", 3),
factorial("C", 6),
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