python中threading怎么开启关闭线程-创新互联

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在python中启动和关闭线程:

首先导入threading

import threading

然后定义一个方法

def serial_read():
...
...

然后定义线程,target指向要执行的方法

myThread = threading.Thread(target=serial_read)

启动它

myThread.start()

二、停止线程

不多说了直接上代码

import inspect
import ctypes
def _async_raise(tid, exctype):
  """raises the exception, performs cleanup if needed"""
  tid = ctypes.c_long(tid)
  if not inspect.isclass(exctype):
    exctype = type(exctype)
  res = ctypes.pythonapi.PyThreadState_SetAsyncExc(tid, ctypes.py_object(exctype))
  if res == 0:
    raise ValueError("invalid thread id")
  elif res != 1:
    # """if it returns a number greater than one, you're in trouble,
    # and you should call it again with exc=NULL to revert the effect"""
    ctypes.pythonapi.PyThreadState_SetAsyncExc(tid, None)
    raise SystemError("PyThreadState_SetAsyncExc failed")
def stop_thread(thread):
  _async_raise(thread.ident, SystemExit)

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