代码如下：
import multiprocessing, time
from multiprocessing import Manager, Pool

def num1():
global num
for i in range(1000):
num += 1
q.put(num, False)
print('====num=====', num)
print('======', q.qsize())

def num2():
global num

while True:
    print(q.empty())
    time.sleep(0.0001)
    if not q.empty():
        result = q.get()
        print(result)
    else:
        break

if name == 'main':
num = 0
q = Manager().Queue()
p = Pool(5)
for i in range(5):
p.apply_async(num1)
for i in range(3):
p.apply_async(num2)
p.close()
p.join()
偶尔会出现进程不退出的情况，如下图怎么解决？？？