python读取bin文件并下发串口

# coding:utf-8import time, serialfrom struct import *import binascii

file = open(‘E:\\1.bin‘, ‘rb‘)i = 0while 1:    c = file.read(1)    # 将字节转换成16进制；    ssss = str(binascii.b2a_hex(c))[2:-1]    print(str(binascii.b2a_hex(c))[2:-1])    if not c:        break    ser = serial.Serial(‘COM3‘, 57600, timeout=1)    ser.write(bytes().fromhex(ssss))# 将16进制转换为字节    if i % 16 == 0:        time.sleep(0.001)    #写每一行等待的时间

    i += 1    ser.close()file.close()