多线程——进行自定义运算

 1 import threading
 2 def a(aa):
 3    global aa1
 4    aa1-=aa
 5    print(aa1,aa,threading.current_thread().name)
 6    
 7 aa1=100                                       #定义起始数值
 8 def threadd():
 9    global aa1
10    print(threading.current_thread().name)
11    for i in range(3):
12        
13        bb=[]
14        for ii in range(2):
15            a1=int(input())                     #输入自已的数值
16            print(a1,type(a1))
17            t =threading.Thread(target=a,args=(a1,))
18            t.start()
19            bb.append(t)
20        for t1 in bb:
21            t1.join()
22        #time.sleep()
23 
24 threadd()