python获取多线程的返回值

import threading

import time

class MyThead(threading.Thread):
def __init__(self,func,args=()):
super(MyThead,self).__init__()
self.func = func
self.args = args

def run(self):
self.result = self.func(*self.args)

def get_result(self):
try:
return self.result
except:
raise None

def m(n):
time.sleep(3)
return n

li=[]
for i in range(10):
t = MyThead(m,args=(i,))
li.append(t)
t.start()

for i in li:
i.join()
print(i.get_result())