Python 第四阶段 学习记录之----多线程

多线程

多线程例子, 注释部份即为多线程的使用

#-*- coding: utf-8 -*-
# Wind clear raise
# 2017/3/5 下午2:34 import socket
import threading
import time
import queue, json
import hashlib def list(conn):
conn.send(b"list")
recv_data_size = conn.recv(1024)
conn.send(b"OK")
recv_data_size = int(recv_data_size.decode())
recv_size = 0
res = b''
while recv_size < recv_data_size:
data = conn.recv(1024)
res += data
recv_size += len(data) print(res.decode()) def run(username, password, i):
client = socket.socket()
client.connect(('localhost', 9999))
sha = hashlib.sha256()
sha.update(password.encode())
data = {"account_id": username, "password": sha.hexdigest()}
# 服务器只返回一次
client.send(json.dumps(data).encode())
res = client.recv(1024)
if res != b'Fail':
print("登录成功. 服务器返回:", res.decode(), threading.current_thread(), i)
# list(client) else:
print("密码错误")
client.close() def run2(name, paswd, i):
print(i, threading.current_thread()) if __name__ == "__main__":
# start_time = time.time()
# d = ["alex", 'alex2', "user01"]
# obj_t = []
# for i in range(1000):
# # for name in d:
# # run(name, "123")
# t = threading.Thread(target=run, args=("alex", "123", i))
# # obj_t.append(t)
# t.start()
#
# # for t in obj_t:
# # t.start()
# # for t in obj_t:
# # t.join()
#
# print("end: ", time.time() - start_time)
client = socket.socket()
client.connect(('localhost', 9999))
client.send(b'hello')
print(client.recv(1024))

线程之间通信:queue

import queue

# q = queue.Queue() # 先进先出
q = queue.LifoQueue() # 后进先出 q.put(1)
q.put(2)
q.put(3)
q.put(4)
print(q.get())
print(q.get())
print(q.get())
print(q.get()) q = queue.PriorityQueue()
q.put((-1, ""))
q.put((10, ""))
q.put((5, "")) print(q.get())
print(q.get())
print(q.get())
print(q.get())
上一篇:[AngularJS] ui-router: Abstract States


下一篇:Android控件——Button与ImageButton