线程锁

import threading,time
num = 1
lock = threading.Lock()  #申请一把锁

def run():
   time.sleep(1)
   global num
   lock.acquire() #加锁
   num+=1
   lock.release() #解锁
ts = []
for i in range(100):
   t = threading.Thread(target=run)
   t.start()
   ts.append(t)
[t.join() for t in ts]
print(num)