Python 官方文档:入门教程 => 点击学习
1、共享变量 #通过共享变量 import time import threading url_list = [] def get_detail_html(): global url_list while True:
1、共享变量
#通过共享变量
import time
import threading
url_list = []
def get_detail_html():
global url_list
while True:
if len(url_list):
url_list.pop()
print("get detail html started")
time.sleep(3)
print("get detail html end")
def get_detail_url():
while True:
global url_list
print("get detail url started")
url_list.append(1)
time.sleep(1)
print("get detail url end")
if __name__ == "__main__":
thread2 = threading.Thread(target=get_detail_url)
thread2.start()
for i in range(2):
thread1 = threading.Thread(target=get_detail_html)
thread1.start()
#thread1.join()
#thread1.setDaemon(True)
#thread2.setDaemon(True)
start_time = time.time()
#thread2.join()
print(time.time() - start_time)
2、通过queue
#通过queue
import time
import threading
from queue import Queue
def get_detail_html(queue):
while True:
queue.put()
print("get detail html started")
time.sleep(3)
print("get detail html end")
def get_detail_url(queue):
while True:
print("get detail url started")
queue.get(1)
time.sleep(1)
print("get detail url end")
if __name__ == "__main__":
url_queue = Queue(maxsize=1000)
thread2 = threading.Thread(target=get_detail_url,args=(url_queue,))
thread2.start()
for i in range(2):
thread1 = threading.Thread(target=get_detail_html,args=(url_queue,))
thread1.start()
#thread1.join()
#thread1.setDaemon(True)
#thread2.setDaemon(True)
start_time = time.time()
#thread2.join()
print(time.time() - start_time)
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