python关闭线程的方法：

一、启动线程

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)

停止线程

stop_thread(myThread)
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