varif(var==100):print("The number is equal to 100")ifvar%2==0:print("The number is even")else:print("The given number is odd")elifvar==0:print("The given number is zero")else:print("The given number is negative") On executing the above code, it will display the below output − The number is equal to 100 The number is even Print Page Prev...
执行",1) td = threading.Thread(target=threa_test,daemon=True) # 设置为守护线程 # td.daemon = True 也可以通过设置属性的方式设置为守护线程 td.start() time.sleep(3) # 主线程阻塞3秒 print("主线程执行完毕") # 输出新线程执行 1 新线程执行 1 主线程执行完毕 从上边的例子可以看出主线程执行...
client_addr = self.server.accept() print("Received a connection from %s" % str(client_addr)) client_thread = threading.Thread(target=self.handle_client, args=(client,)) client_thread.daemon = True client_thread.start() def handle_client(self, client): """Handle ...
ExampleIn the below example, we are creating a singleton class using the __init__ method.Open Compiler class Singleton: __uniqueInstance = None @staticmethod def createInstance(): if Singleton.__uniqueInstance == None: Singleton() return Singleton.__uniqueInstance def __init__(self): if ...
Theget()function enforces the singleton pattern. You should only have one instance of the client in your application. ldclient must be a singleton It’s important to makeldclienta singleton for each LaunchDarkly project. The client instance maintains internal state that allows LaunchDarkly to serve...
[uwsgi]socket=127.0.0.1:9000# 监听到网络套接字 也可以是uwsgi.sockpythonpath=/PyPro/optima_orderpy-autoreload=1# 代码修改自动重载module=servercallable=appmaster=trueprocesses=4threads=2pidfile=uwsgi.piddaemonize=uwsgi.log uwsgi --ini uwsgi.int ...
if (create == MQ_FACTORY_NEW_THREAD) { PyThreadState *threadstate = PyEval_SaveThread(); PyGILState_STATE gilstate = PyGILState_Ensure(); static PyInterpreterConfig config = { .use_main_obmalloc = 0, .allow_fork = 0, .allow_exec = 0, .allow_threads = 1, .allow_daemon_threads ...
For example, when someone refers to docker, they can mean one of the following: Docker, Inc.: The company behind the platform and the related tools Docker: The open-source container platform Docker CLI: The docker client command-line program dockerd: The Docker daemon that manages the ...
文章目录一、守护进程(daemon)1.1 守护进程概念1.2 守护进程示例1.3 多个子进程的情况二、互斥锁(Lock)2.1 互斥锁概念2.2 互斥锁作用2.3 互斥锁示例2.4 区分同步和异步三、Semaphore(信号量) 一、守护进程(daemon)1.1 守护进程概念首先我们都知道:正常情况下,主进 ...
(4)数据库连接池单例模式,在类被执行的才连接,不想类属性或者全局类对象一样,程序加载的时候就连接 是一个函数封装 通过装饰器的方式调用场景:通过单例解决mysql等服务连接过多的问题思路: 先判断实例是否已经初始化 如果已经初始化了对象,直接使用初始化的对象 如果没有,则初始化参考singleton.py 45.闭包闭包就...