python创建线程示例

代码如下:

import threading
from time import sleep

def test_func(id):
for i in range(0,5):
sleep(1)
print('thread %d is running %d' % (id,i))

threads = []
for i in range(0,3):
t = threading.Thread(target=test_func, args=(i,))
threads.append(t)

for t in threads:
t.start()

for t in threads:
t.join()

从 输出结果可以看到，3个线程是交替的执行的

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