python--多线程编程 threading(二)

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python--多线程编程 threading(一)

通过继承Thread来实现多线程

#-*-coding:utf-8-*-
import threading
import time

class GetDetailHtml(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 GetDetailUrl(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 = GetDetailHtml("get_detail_html")
    thread2 = GetDetailUrl("get_detail_url")
    start_time = time.time()
    thread1.start()
    thread2.start()
    thread1.join()
    thread2.join()
    print("last time:{}".format(time.time()-start_time))