1、指定路径、log文件名字

import serial
import time
import os  #对文件、文件夹的操作需要涉及到os模块

DEBUG_LOG = ""
TIME = ""

TIME = time.strftime("%Y-%m-%d_%H_%M_%S", time.localtime())
DEBUG_LOG = "DEBUG_LOG_{}.log".format(TIME)
log = open(DEBUG_LOG, 'a')
log.write("在当前路径下生成log\r\n")
log.close()

##在指的路径下生成log
#创建文件夹
folder_name = r'\log-1-'
root_directory = r'E:\5G_test\111111111Testcode\learn\1.25'
TIME = time.strftime("%Y-%m-%d_%H_%M_%S", time.localtime())
try:
  os.mkdir(root_directory + folder_name)   #os.mkdir("file")：创建目录
except OSError:
  pass

#创建文件
# file_path = root_directory + folder_name +TIME+'.log'
#这个方法log文件名字、log文件路径都可以在上面定义
file_path = root_directory + '\LOG' +TIME+'.log'
#这个方法log文件路径可以在上面定义log文件名字为LOG-TIME.log
print(file_path)
f = open(file_path, 'a')
print(2)
f.write("testing\r")
f.close()
print(3)
f = open(file_path, 'a')
f.write("+++++\r")
f.close()
print(4)