p1  =  MyProcess(host_dict[host][ 0 ],host_dict[host][ 1 ],host_dict[host][ 2 ],host_dict[host][ 3 ],cmd,localpath,remotepath)
             p1.daemon  =  True
             p1.start()
             p_l.append(p1)
 
     for  in  p_l:
         i.join()
 
     print ( "所有进程执行结束" )