python中threading怎么开启关闭线程-创新互联
这篇文章主要讲解了python中threading怎么开启关闭线程,内容清晰明了,对此有兴趣的小伙伴可以学习一下,相信大家阅读完之后会有帮助。
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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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