最后还是在windows环境下（没有mac）解决了，忘了上号补充，脚本如下，写得很辣鸡，见谅

import re,linecache import pywintypes, win32file, win32con

def changeFileCreationTime(fname, newtime): from datetime import datetime datetime_object = datetime.strptime(newtime, '%Y-%m-%d %H:%M:%S') winfile = win32file.CreateFile( fname, win32con.GENERIC_WRITE, win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE | win32con.FILE_SHARE_DELETE, None, win32con.OPEN_EXISTING, win32con.FILE_ATTRIBUTE_NORMAL, None) # print(datetime_object) win32file.SetFileTime(winfile, datetime_object, None, None) winfile.close()

inputfile = input('Input SourcFile:') ##输入源文件，如A.txt fp = open(inputfile, 'r',encoding="UTF-8") rex = r'\d{4}-\d?\d-\d?\d (?:2[0-3]|[01]?[0-9]):[0-5]?[0-9]:[0-5]?[0-9]' number =[] #用来存放指定分割字符所在行数 times=[] #用来存放所匹配的时间字符串 lineNumber = 1

count = 0 #记录文件所有行数 for index, line in enumerate(fp): count += 1 m=re.search(rex,line) if m is not None: number.append(index) times.append(m)

print(number)

print(count)

print(times[10].string)

for i in range(0,len(number)-1): start = number[i] print(start) end = number[i+1] print(end) timestr=times[i].string.replace("\n","") print(timestr) destLines = linecache.getlines(inputfile)[start+1:end] #将行号为start+1到end-1的文件内容截取出来 fp_w = open('MiNote_' + str(i)+'.txt','w',encoding="utf-8") #将截取出的内容保存在输出文件中 for key in destLines: fp_w.write(key) fp_w.close() changeFileCreationTime(fp_w,timestr) #修改文件时间