python關閉線程的方法:首先導入threading,定義一個方法;然後定義線程,target指向要執行的方法,啟動它;最後停止線程,程式碼為【stop_thread(myThread)】。
本教學操作環境:windows7系統、python3.9版,DELL G3電腦。
python關閉執行緒的方法:
一、啟動執行緒
先匯入threading
import threading
然後定義一個方法
def serial_read(): ... ...
然後定義線程,target指向要執行的方法
myThread = threading.Thread(target=serial_read)
啟動它
myThread.start()
二、停止線程
#不多說了直接上程式碼
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)
停止執行緒
stop_thread(myThread)
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