python-Arduino串口传输数据到电脑并保存至excel表格

　　起因：学校运河杯报了个项目，制作一个天气预测的装置。我用arduino跑了BME280模块，用蓝牙模块实现两块arduino主从机透传。但是为了分析，还需要提取出数据。因此我用python写了个上位机程序，用pyserial模块实现arduiho和电脑的串口通讯，再用xlwt模块写入excel表格，用time模块获取时间作为excel的文件名。

 1 import xlwt
 2 import time
 3 import serial
 4 #设置表格样式
 5 def set_style(name,height,bold=False):
 6     style = xlwt.XFStyle()
 7     font = xlwt.Font()
 8     font.name = name
 9     font.bold = bold
10     font.color_index = 4
11     font.height = height
12     style.font = font
13     return style
14 
15 #写Excel
16 def write_excel():
17     if serial.isOpen():
18         print ('串口已打开\n')
19     f = xlwt.Workbook()
20     sheet1 = f.add_sheet('arduino_data',cell_overwrite_ok=True)
21     row0 = ["temp","pres","hum"]
22     time1=time.localtime(time.time())
23     #写第一行
24     for i in range(len(row0)):
25         sheet1.write(0,i,row0[i],set_style('Times New Roman',220,True))
26     i=1
27     time.sleep(5)
28     serial.flushInput() 
29     while True:
30         try:
31             size = serial.inWaiting()
32             if size != 0:
33                 response = serial.read(size)        # 读取内容并显示
34                 s=response.decode('utf-8').rstrip('\r\n').split('\t')
35                 if len(s)!=3:
36                     serial.flushInput()
37                     continue
38                 else:
39                     try:
40                         for j in range(len(s)):
41                             sheet1.write(i,j,int(s[j]),set_style('Times New Roman',220,False))
42                         print(s)
43                         serial.flushInput()                 # 清空接收缓存区
44                         i = i+1
45                         time.sleep(0.5)
46                     except ValueError:
47                         serial.flushInput()
48                         continue
49         except KeyboardInterrupt:
50             time2=time.localtime(time.time())
51             f.save(r'C:\Users\10020\Desktop\arduino_data\{0}.{1}_{2:0>2d}.{3:0>2d}.{4:0>2d}-{5}.{6}_{7:0>2d}.{8:0>2d}.{9:0>2d}.xls'.format\
52                    (time1[1],time1[2],time1[3],time1[4],time1[5],
53                     time2[1],time2[2],time2[3],time2[4],time2[5]))
54             serial.close()
55             print(time1)
56             print(time2)
57             quit()
58     
59 if __name__ == '__main__':
60     serial = serial.Serial('COM3',9600,timeout=2)
61     write_excel()