Python 线程,with的作用(自动获取和释放锁Lock) import threading import time num= #全局变量多个线程可以读写,传递数据 mutex=threading.Lock() #创建一个锁 class Mythread(threading.Thread): def run(self): global num with mutex: #with Lock的作用相当于自动获取和释放锁(资源) ): #锁定期间,其他线程不可以干活 num+= print(num
---恢复内容开始--- Request的五种请求方式: request.get() request.post() request.head() requst.put() request.patch() request.options() 一:request.get(): 源码: def get(url, params=None, **kwargs): r"""Sends a GET request. :param url: URL for the new :class:`R