Question

我正在编写一个连接到远程sevrer的简单套接字程序。我收到服务器的响应并尝试通过在ffunction中调用它来结束它到另一个函数。但是当我打印出那个响应时我什么都没得到这是代码：

def Sendcm(self,command):



         result ="ok"
         try:
             #print "start"
             if command.startswith("#"):
               #print result
               return result

             elif not command:
                 return result

            # print 'yes'
             result=self.sendWait(command)
             print ('This is::')
             print result \\blank
         except Exception as e:
             traceback.print_exc()

         return result

sendWait功能

 def sendWait(self,cmd):


          try:


               b=len(cmd)

               s.send(struct.pack("!H",b))
               s.send(cmd)
               response=s.recv(1024)

               print "The response received is:::"
               print response
               if RESP_OK in response:
                    return
               elif RESP_SUCCESS in response:
                    return
               elif RESP_Failure in response:
                    return

               return response 
          except Exception:
               traceback.print_exc()

Answer 1

解决了它。问题是if语句中的return语句。由于代码永远不会返回响应.i将整个代码放在while循环中并使用break来打破循环并返回响应。现在它工作正常变化：

while True:

                    s.send(cmd)
                    response=s.recv(1024)

                    print "The response received is:::"
                    print response
                    if RESP_OK in response:
                         break
                    elif RESP_SUCCESS in response:
                         break
                    elif RESP_FAILURE in response:
                         break

               return response

套接字编程python.Unable从一个函数返回响应到其他函数

1 个答案: