value is: 15 func2 return value is: 19 方法二: threading.Thread,重写 run 方法 class my(threading.Thread): def __init__(self,func,args=()): super(mythread, self).__init__() self.func=func self.args=args def run(self): self.result=self.func(*self.args) def get_result(...
方法二:重写 Thread 的 join 方法,返回线程函数的返回值 默认的 thread.join() 方法只是等待线程函数结束,没有返回值,我们可以在此处返回函数的运行结果,代码如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 from threadingimportThread deffoo(arg):returnargclassThreadWithReturnValue(Thread):defrun(self...
t = threading.Thread(target=func_dict["func"]) self.threads.append(t) for thread_obj in self.threads: thread_obj.start() for thread_obj in self.threads: thread_obj.join() def ret_value(self): """ @note: 所有线程函数的返回值之和,如果为0那么表示所有函数执行成功 """ return self.ret...
threading.Thread.__init__(self) = name self.func = func self.args = args self.result = self.func(*self.args) def get_result(self): try: return self.result except Exception: return None def loop(nloop): for j in t_list: cldas_values = [] for k in range(4): cldas_value = n...
from threading import Thread def first_function(first_argu, return_val): print(first_argu) return_val[0] = "Return Value from " + first_argu return_val_from_1 = [None] * 1 return_val_from_2 = [None] * 1 thread_1 = Thread(target=first_function, args=("Thread 1", return_val_...
线程相关的模块有thread和threading,其中threading是thread的改进和升级版,且thread模块有一个致命的缺点,在主线程退出之后,所有其他线程都会在没有清理的情况下直接退出。threading模块中加入守护线程概念,如果被指明为守护线程后主线程退出后不会等待守护线程执行完毕才吐出。整个Python 程序(可以解读为:主线程)将在所有...
fromthreadingimportThread classCustomThread(Thread): def__init__(self, group=None, target=None, name=None, args=(), kwargs={}, Verbose=None): Thread.__init__(self, group, target, name, args, kwargs) self._return=None defrun(self): ...
from threading import Thread import time def func(name): print('子线程开始执行') time.sleep(1) print('my name is {}'.format(name)) print('子线程执行完毕') if __name__ == '__main__': print('主线程开始执行') t = Thread(target=func, args=('jack',)) ...
t = threading.Thread(target=func_dict["func"])self.threads.append(t)for thread_obj in self.threads:thread_obj.start()for thread_obj in self.threads:thread_obj.join()def ret_value(self):"""@note: 所有线程函数的返回值之和，如果为0那么表⽰所有函数执⾏成功 """return self.ret_flag M...
threading 库是 Python 标准库中内置的线程模块，主要用于多线程编程。基本用法如下：1. 创建线程：使用 threading.Thread 类实例化一个线程，可以传入一个函数作为 target。import threadingdefrun(): print("Running thread")# 创建线程thread = threading.Thread(target=run)2. 启动线程：使用线程的 start() ...