- 通过实例化Thread类
import threading
import time
def get_detail_html(url):
print("get detail html started")
time.sleep(2)
print("get detail html end")
def get_detail_url(url):
print("get detail url started")
time.sleep(4)
print("get detail url end")
if __name__ == "__main__":
thread1 = threading.Thread(target=get_detail_html, args=("",))
thread2 = threading.Thread(target=get_detail_url, args=("",))
# thread1.setDaemon(True) # 设置为守护线程，意思是主线程关闭后，也关闭这个守护线程
thread2.setDaemon(True)
start_time = time.time()
thread1.start()
thread2.start()
thread1.join() #
thread2.join() # 等待这两个线程执行完成后，再执行主线程
print("last time: {}".format(time.time()-start_time))
- 通过继承Thread
import threading
import time
class GetDetalHTML(threading.Thread):
def __init__(self, name):
super().__init__(name=name)
def run(self):
print("get detail html started")
time.sleep(2)
print("get detail html end")
class GetDetalURL(threading.Thread):
def __init__(self, name):
super().__init__(name=name)
def run(self):
print("get detail url started")
time.sleep(4)
print("get detail url end")
if __name__ == "__main__":
thread1 = GetDetalHTML("get_detail_html")
thread2 = GetDetalURL("get_detail_url")
start_time = time.time()
thread1.start()
thread2.start()
thread1.join() #
thread2.join() # 等待这两个线程执行完成后，再执行主线程
print("last time: {}".format(time.time() - start_time))
