我想从我的列表中随机选择一个元素,所以我使用 random.sample(output, 1)
然后将其删除,但首先我将此元素传输到客户端进程,然后再删除它。我想要做的是让客户确认它是否想要所述元素,如果它说不,则不要删除它。我试图实现这一点,但不是在运行服务器时出错,而是在运行客户端进程并连接到服务器后出错。真的很想让这个工作,所以感谢帮助!
同样给出的错误是 OSError: [WinError 10057] A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied
服务器代码:
import socket
from _thread import *
import random
PORT = 5050
HOST = socket.gethostbyname(socket.gethostname())
ADDR = (HOST, PORT)
ThreadCount = 0
tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
records = [('Empresa:', 'Altri', 'Cotação:', 5.37), ('Empresa:', 'BCP', 'Cotação:', 0.13),
('Empresa:', 'Corticeira Amorim', 'Cotação:', 10.58), ('Empresa:', 'CTT', 'Cotação:', 5.12),
('Empresa:', 'EDP Renováveis', 'Cotação:', 20.64),
('Empresa:', 'EDP', 'Cotação:', 4.67), ('Empresa:', 'Galp', 'Cotação:', 8.70),
('Empresa:', 'Ibersol', 'Cotação:', 5.82), ('Empresa:', 'Jerónimo Martins', 'Cotação:', 16.83),
('Empresa:', 'Mota-Engil', 'Cotação:', 1.35),
('Empresa:', 'NOS', 'Cotação:', 3.03), ('Empresa:', 'Novabase', 'Cotação:', 4.60),
('Empresa:', 'PHAROL', 'Cotação:', 0.11), ('Empresa:', 'REN', 'Cotação:', 2.37),
('Empresa:', 'Semapa', 'Cotação:', 11.50), ('Empresa:', 'Sonae', 'Cotação:', 0.80),
('Empresa:', 'Sonac', 'Cotação:', 0.77), ('Empresa:', 'The Navigator Company', 'Cotação:', 2.96)]
def create_random_numbs(input_list):
output_numbers = []
for given_number in input_list:
max = given_number * 1.25
min = given_number * 0.75
random_number = random.random()
random_number_in_desired_range = min + (random_number * (max - min))
output_numbers.append(random_number_in_desired_range)
return output_numbers
def swap():
input_numbers = [x[-1] for x in records]
new_numbers_in_desired_range = create_random_numbs(input_numbers)
new_records = []
for item, new_number in zip(records, new_numbers_in_desired_range):
item_as_list = list(item)
item_as_list[-1] = new_number
new_records.append(tuple(item_as_list))
return new_records
output = swap()
swap()
try:
tcp.bind(ADDR)
except socket.error as e:
print(str(e))
print("A aguardar ligação")
tcp.listen(10)
PORT = 5050
HOST = socket.gethostbyname(socket.gethostname())
ADDR = (HOST, PORT)
ThreadCount = 0
tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
tcp.bind(ADDR)
except socket.error as e:
print(str(e))
print("Awaiting conn")
tcp.listen(10)
def threaded_client(connection):
connection.send(str.encode('Bem vindo à bolsa'))
stock = random.sample(output, 1)
order = str(stock)
while True:
data = connection.recv(2048)
if not data:
break
print(data.decode('utf-8'))
tcp.send(str.encode(('Do you want this stock?' + order)))
reply = connection.recv(2048)
print(reply.decode('utf-8'))
if (reply == 'Y'):
tcp.send(str.encode(order))
output.remove(order)
elif (reply == 'N'):
break
else:
tcp.send(str.encode('Insert valid letter'))
connection.close()
客户端代码:
import socket
Client = socket.socket(socket.AF_INET, socket. SOCK_STREAM)
PORT = 5050
HOST = socket.gethostbyname(socket.gethostname())
ADDR = (HOST, PORT)
compras = []
print('Awaiting conn')
try:
Client.connect(ADDR)
except socket.error as e:
print(str(e))
Response = Client.recv(1024)
while True:
Client.send(str.encode('I wanna trade!'))
Response = Client.recv(1024)
print(Response.decode('utf-8'))
Check = input('Y/N: ')
Client.send(str.encode(Check))
final = Client.recv(1024)
compras.append(final.decode('utf-8'))
Client.close()