如何从一个线程中实时获取数据？

Question

我有一个线程在建设中，我需要在没有任何全局变量的情况下从它那里获取数据。是否可以在没有线程块或其他东西的情况下实时获取数据？请帮助我。

def one():
  while True:
    a = data1
    something gonna here with var b from thread two

def two():
  while True:
    b = a from thread one
    something gonna here

def main():
  th1 = Thread(target=one)
  th2 = Thread(target=two)
  th1.start()
  th2.start()
  something gonna here with var a and var b

Answer 1

你可以使用multiprocessing.Pipe或者multiprocessing.Queue在python中向不同的线程和进程发送数据。

管道的实现是这样的

from multiprocessing import Pipe
 def one(connA):
  while True:
    a = data1
    connA.send([a])
    something gonna here with var b from thread two

def two(connB):
  while True:
    b = connB.recv() #receives [a] from thread one
    connB.send([b]) #send [b] to main thread
    something gonna here

def main():
  A,B=Pipe()
  th1 = Thread(target=one,args=(A))
  th2 = Thread(target=two,args=(B))
  th1.start()
  th2.start()
  something gonna here with var a and var b
  b=A.recv() # receive var b from