Question

我的批处理文件如下所示：

.....
set ARGS=%ARGS% /startDate:2015-07-15T15:20:00.000
set ARGS=%ARGS% /endDate:2015-07-15T17:30:00.000
set ARGS=%ARGS% /IDs:250
set ARGS=%ARGS% /values:10000,20000
.....

现在我想读它并用新日期覆盖它（当前开始和结束后1天）。如果我将其写入新文件，但下面的代码工作正常，但如果我尝试覆盖它则不起作用。有关如何修复它的想法吗？

WANTED = 19 #or however many characters you want after dates

with open('myfile.bat') as searchfile, open('mynewfile.bat', 'w') as outfile:


    for line in searchfile:
        left,sep,right = line.partition('startDate:')
        if sep: # True iff 'Figure' in line
            startdatestr = (right[:WANTED])
            startdate = datetime.strptime(startdatestr, "%Y-%m-%dT%H:%M:%S")
            newstartdate = startdate + timedelta(days=1)
            newstartdatestr = newstartdate.strftime("%Y-%m-%dT%H:%M:%S")
            line = line.replace(startdatestr, newstartdatestr)  


        left,sep,right = line.partition('endDate:')
        if sep: # True iff 'Figure' in line
            enddatestr = (right[:WANTED])
            enddate = datetime.strptime(enddatestr, "%Y-%m-%dT%H:%M:%S")
            newenddate = enddate + timedelta(days=1)
            newenddatestr = newenddate.strftime("%Y-%m-%dT%H:%M:%S")
            line = line.replace(enddatestr, newenddatestr)  
        outfile.write(line)

Answer 1

当你在开放（）＆＃39;部分，您的文件仍处于打开状态，因此您无法覆盖它。将内容和修改存储在变量中，并使用open（）＆＃39; part，以便文件句柄关闭。

然后打开文件进行写入并将数据输出到其中。

如何在Python中读取和覆盖部分批处理文件

1 个答案: