win下 python 多线程运行失败的问题

最近拿python写个语音通讯软件，要使用多线程，但运行后出现了奇怪的现象，仅有一个线程工作 而后面的线程不运行 像被阻塞了，感觉很奇怪....

这里要注意 各位朋友要养成 Try: except的好习惯...

本来以为是threading 在windows下不兼容的问题，后来使用thread 仍然失败，然后编写了最简单的例程发现 thread函数中 必须要写一个参数 才能正常调用成功。。

也就是如下代码

def test_a()
    while(True):
        sleep(5)
        print  'xx'
def test_b():
    while(True):
       sleep(5)
       print  'xx'
theading.thread(test_b())   ##这么调用是失败的，我们增加一个参数给test_a(num), test_b(num)
theading.thread(test_a, args=(6,))   #这么调用才可以，希望各位朋友注意。。。

import socket
import sys
import threading
# import thread
from time import sleep


def tcp_server(db):
 HOST = '' # Symbolic name meaning all available interfaces
    PORT = 5000  # Arbitrary non-privileged port

    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    print 'Socket created'

 try:
 s.bind((HOST, PORT))
    except socket.error, msg:
 print 'Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1]
 sys.exit()

    print 'Socket bind complete'

 s.listen(10)
    print 'Socket now listening'

 # now keep talking with the client
    while 1:
 # wait to accept a connection - blocking call
        conn, addr = s.accept()
        print 'Connected with ' + addr[0] + ':' + str(addr[1])
        while (True):
 data = conn.recv(1024)
            reply = 'OK...' + data
if not data:
 break

 conn.sendall(reply)

    conn.close()
    s.close()


def tcp_client(db):
 try:
 # create an AF_INET, STREAM socket (TCP)
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    except socket.error, msg:
 print 'Failed to create socket. Error code: ' + str(msg[0]) + ' , Error message : ' + msg[1]
 sys.exit();

print 'Socket Created client'
 # host = 'www.google.com'
    host=''
 port = 5000

    # try:
    #     host = socket.gethostname()
    #     remote_ip=socket.gethostbyaddr(host)
    #
    # except socket.gaierror:
    #     # could not resolve
    #     print 'Hostname could not be resolved. Exiting'
    #     sys.exit()

    # print 'Ip address of ' + host + ' is ' + remote_ip
    # Connect to remote server

    try:
 s.connect(('127.0.0.1', port))
    except Exception,e:
 print 'connect error'
 print e
        sys.exit()
        # print 'Socket Connected to ' + host + ' on ip ' + remote_ip
        # Send some data to remote server
    message = "GET / HTTP/1.1\r\n\r\n"


 while (True):
 try:
 # Set the whole string
            s.sendall(message)
        except Exception, e:
 # Send failed
            print e
            sys.exit()

        print 'Message send successfully'

 # Now receive data
        reply = s.recv(4096)

        print 'from server:', reply
        sleep(5)

if __name__ == "__main__":
 t=threading.Thread(target=tcp_server,args=(2,))
    t.start()
    sleep(3)
    s=t=threading.Thread(target=tcp_client,args=(3,))

    s.start()
    t.join()
    s.join()

import socket
import sys
import threading
# import thread
from time import sleep


def tcp_server(db):
 HOST = '' # Symbolic name meaning all available interfaces
    PORT = 5000  # Arbitrary non-privileged port

    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    print 'Socket created'

 try:
 s.bind((HOST, PORT))
    except socket.error, msg:
 print 'Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1]
 sys.exit()

    print 'Socket bind complete'

 s.listen(10)
    print 'Socket now listening'

 # now keep talking with the client
    while 1:
 # wait to accept a connection - blocking call
        conn, addr = s.accept()
        print 'Connected with ' + addr[0] + ':' + str(addr[1])
        while (True):
 data = conn.recv(1024)
            reply = 'OK...' + data
if not data:
 break

 conn.sendall(reply)

    conn.close()
    s.close()


def tcp_client(db):
 try:
 # create an AF_INET, STREAM socket (TCP)
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    except socket.error, msg:
 print 'Failed to create socket. Error code: ' + str(msg[0]) + ' , Error message : ' + msg[1]
 sys.exit();

print 'Socket Created client'
 # host = 'www.google.com'
    host=''
 port = 5000

    # try:
    #     host = socket.gethostname()
    #     remote_ip=socket.gethostbyaddr(host)
    #
    # except socket.gaierror:
    #     # could not resolve
    #     print 'Hostname could not be resolved. Exiting'
    #     sys.exit()

    # print 'Ip address of ' + host + ' is ' + remote_ip
    # Connect to remote server

    try:
 s.connect(('127.0.0.1', port))
    except Exception,e:
 print 'connect error'
 print e
        sys.exit()
        # print 'Socket Connected to ' + host + ' on ip ' + remote_ip
        # Send some data to remote server
    message = "GET / HTTP/1.1\r\n\r\n"


 while (True):
 try:
 # Set the whole string
            s.sendall(message)
        except Exception, e:
 # Send failed
            print e
            sys.exit()

        print 'Message send successfully'

 # Now receive data
        reply = s.recv(4096)

        print 'from server:', reply
        sleep(5)

if __name__ == "__main__":
 t=threading.Thread(target=tcp_server,args=(2,))
    t.start()
    sleep(3)
    s=t=threading.Thread(target=tcp_client,args=(3,))

    s.start()
    t.join()
    s.join()