Python 限制线程的最大数量(Semaphore)

import threading
import time

sem = threading.Semaphore(4)  # 限制线程的最大数量为4个  


def gothread():
    with  sem:  # 锁定线程的最大数量 
 for i in range(8):
 print(threading.current_thread().name, i)
 time.sleep(1)


for i in range(5):
 threading.Thread(target=gothread).start()

 

转载于:https://www.cnblogs.com/smxiazi/p/8878283.html