我有以下代码

import serial

import time

ser = serial.Serial('COM10', 9600, timeout=0)

timeout = time.time() + 60*1

def readresponse():

while 1:

try:

print(ser.readline())

time.sleep(1)

except ser.SerialTimeoutException:

print('Data could not be read')

if (time.time() > timeout):

break

time.sleep(1)

def sendHttpPost():

ser.write('AT+HTTPACTION=1\r'.encode())

def initialAtCommands():

ser.write('AT+SAPBR=3,1,\"Contype\",\"GPRS\"\r'.encode())

ser.write('AT+SAPBR=3,1,\"APN\",\"APN\"\r'.encode())

ser.write('AT+SAPBR=1,1\r'.encode())

ser.write('AT+HTTPINIT\r'.encode())

ser.write('AT+HTTPPARA=\"CID\",1\r'.encode())

ser.write('AT+HTTPPARA=\"URL\"URL\"\r'.encode())

if(ser.isOpen() == False):

print("Serialport is currently not connected")

else:

print("Serialport successfully connected")

initialAtCommands()

while 1:

sendHttpPost()

readresponse()

其思想是,先执行sendhttppost,然后读取响应60秒,然后再次发送HttpPost。但代码不再进入readresponse。

你知道为什么吗?