1. 代码
import time
def task_1():
while True:
print("------------1-------------")
time.sleep(0.1)
yield
def task_2():
while True:
print("------------2-------------")
time.sleep(0.1)
yield
def main():
t1 = task_1()
t2 = task_2()
while True:
next(t1)
next(t2)
if __name__ == "__main__":
main()