线程初偿

Posted 2020-10-31 brownyangyang

# -*- coding:utf-8 -*- 
# Author：Brownyangyang
import threading
import time

def sayhi(num):
    print("running on number:%s" %num,threading.current_thread(),threading.active_count()) ##打印线程
    #threading.current_thread()  当前县称号
    #threading.active_count()  活跃线程个数
    time.sleep(2)

#if __name__ == ‘__main__‘:

start_time=time.time()

item_liyan = []
for i in range(50):
    t = threading.Thread(target=sayhi,args=(i,))

    t.start()
    #t2.start()
    item_liyan.append(t)

for j in item_liyan:
    j.join()


print("time %s",time.time()-start_time)
print(threading.current_thread()) ##打印主线程

    #print(t1.getName())
    #print(t2.getName())