simple python code when @ simplnano

code：

import serial,time,itertools

try:
    ser=serial.Serial(2,115200,timeout=0)
except:
    print 'Open COM2 Failed!!'


#transno=(1,100,500,1380,1381)
#transno=(1,20)
indexsets=[[0],[1],[2],[3],[0,1],[0,2],[0,3],[1,2],[1,3],[2,3],[0,1,2],[0,1,3],[0,2,3],[1,2,3],[0,1,2,3]]
indexsets=[[0,1,3],[0,1,2]]
#indexsets_ts=[]

def gene():
    for n in range(1,5):
        indexsets_ts+=list(itertools.combinations([0,1,2,3],n)) #forget what is itertool now
    return indexsets_ts

#sig functions
def sigsnd():
    for actmod in ('diract','apnact'):
        act(actmod)
        for connmod in ('TCP','UDP'):
            conn(connmod)
            connt=0
            for dismod in ('dirsht','closht'):
                for sndmod in ('uctl','fixl'):
                    snd(sndmod)
                dis(dismod)
                if connt<1:
                    conn(connmod)
                connt+=1
        
        
def init():
    swrt(chr(0x27),1)
    swrt('
',1)
    ser.write('+++')
    swrt('
',1)
def shutConn():
    swrt('at+cipshut',4)
def cloShut():
    swrt('at+cipclose',4)
    swrt('at+cipshut',4)
def cipmod():
    swrt('at+cipmode=0',2)
def olmod():
    swrt('at+cipmode=1',2)
def muxmod():
    swrt('at+cipmux=1',2)
def sigmod():
    swrt('at+cipmux=0',2)
def srd():
    srd=ser.readlines()
    for line in srd:
        print line
    fid=open('tcp_snd.log','a')
    fid.write(line)
    fid.close()
    return srd
def swrt(atcmd_str,wt):
    #fid=open('tcp_snd.log','a')
    #fid.write(atcmd_str)
    #fid.close()
    ser.write(atcmd_str+'
')
    time.sleep(wt)
    srd()
def wrtmsg(transtr,wstm):
    ser.write(transtr+chr(0x1a))
    time.sleep(wstm)
    srd()
def act(actmod):
    if actmod=='apnact':
        swrt('at+cstt="CMNET","",""',2)
        swrt('at+ciicr',4)
    if actmod=='diract':
        pass
def conn(connmod):
    if connmod=='TCP':
        swrt('at+cipstart="TCP","124.205.119.38",1562',6)
    if connmod=='UDP':
        swrt('at+cipstart="UDP","124.205.119.38",1562',6)
def snd(sndmod):
    if sndmod=='uctl':
        for tran in transno:
            for n in range(2):
                swrt('at+cipsend',1)
                wrtmsg(tran*'v',8)
    if sndmod=='fixl':
        for tran in transno:
            for n in range(2):
                swrt('at+cipsend='+str(tran),1)
                wrtmsg(tran*'v',8)
def dis(dismod):
    if dismod=='dirsht':
        shutConn()
    if dismod=='closht':
        cloShut()


#online mode function
def modTs():
    for actmod in ('diract','apnact'):
        act(actmod)
        for connmod in ('TCP','UDP'):
            print connmod
            conn(connmod)
            connt=0
            for dismod in ('dirsht','closht'):
                print dismod
                olsnd() 
                dis(dismod)
                print dismod
                if connt<1:
                    conn(connmod)
                connt+=1

def olsnd():
    for rtm in range(2):
        for tran in transno:
            swrt(tran*'v',1)
            nmipmd()
            ato()
    nmipmd()   
def ato():
    swrt('ato',2)
def nmipmd():
    ser.write('+++')
    time.sleep(3)
    srd()

#mux-mode functions

indset=[0,1,3]
def muxTS(indset):
    for actmod in ('diract','apnact'):
        act(actmod)
        for dismod in ('dirsht','closht'):
            for x in range(2**len(indset)):
                binstr=bin(int(str(x),10))[2:].rjust(len(indset),'0')
                typset=[]
                for nc in binstr:
                    if nc=='0':
                        typset.append('"TCP"')
                    else:
                        typset.append('"UDP"')
                for ind in range(len(indset)):
                    constr='at+cipstart='+str(indset[ind])+','+typset[ind]+',"124.205.119.38",1562'
                    swrt(constr,7)
                print 'wrt done' ##connect OK
                for sndmod in ('uctl','fixl'):
                    for index in indset:
                        print indset,index
                        for tran in transno:
                            for n in range(2):
                                if sndmod=='uctl':
                                    swrt('at+cipsend='+str(index),1)
                                    wrtmsg(tran*'v',15)
                                else:
                                    swrt('at+cipsend='+str(index)+','+str(tran),1)
                                    wrtmsg(tran*'v',15)
                dis(dismod)
        
sndmod=''
def muxmod():
    swrt('at+cipmux=1',2)

def muxsnd(indset):
    for index in indset:
        print indset,index
        for tran in transno:
            for n in range(5):
                if sndmod=='uctl':
                    swrt('at+cipsend='+str(index),1)
                    wrtmsg(tran*'v',15)
                else:
                    swrt('at+cipsend='+str(index)+','+str(tran),1)
                    wrtmsg(tran*'v',15)

#sigle-mode Ts
init()
shutConn()
cipmod()
sigmod()
sigsnd()

    
#online-mode Ts
init()
shutConn()
cipmod()
sigmod()
olmod()
modTs()

#mux-mode Ts
init()
shutConn()
cipmod()
sigmod()
muxmod()
[muxTS(indset) for indset in indexsets]

init()
shutConn()
ser.close()