下列问题的DOS命令

1. Name the batch file EXDIR.BAT.
2. Include your name as a remark in EXDIR.BAT.
3. Include the creation date as a remark in EXDIR.BAT.
4. Include the function of EXDIR.BAT as a remark in EXDIR.BAT- redirects the output of dir C:\ to a file named by the user.
5. The filename provided by the user is the first argument.
6. A valid switch for the command dir is the optional second argument.
7. If the file named by the user already exists, EXDIR.BAT immediately generates an error message and then exits without executing dir.
8. The error message generated by EXDIR.BAT must display, "filename already exists, aborting EXDIR."

自己尝试着写了一下，希望你满足你的要求

rem -----------------------------------------------------------------
rem Name: EXDIR.BAT

rem Create by Qingzhu
rem Date: 2009.12.07
rem Function: The batch file EXDIR.BAT redirects the output of
rem dir C:\ to a file named by the user.
rem -----------------------------------------------------------------

@echo off

for /l %%i in (1,1,2) do goto arg%%i

:arg1
if exist %1 echo %1 already exists, aborting EXDIR. && goto end
goto exdir

:arg2
if exist %1 echo %1 already exists, aborting EXDIR. && goto end
goto exdir

:exdir
dir c:\ >%1 %2
goto end

:end

下面是翻译

命名批处理文件EXDIR.BAT。 包括作为EXDIR.BAT话你的名字。 包括作为EXDIR.BAT话创建日期。 包括作为EXDIR.BAT会上作上述表示的EXDIR.BAT功能重定向dir的C输出：\由用户指定的文件。 由用户提供的文件名是第一个参数。 一个有效的命令dir开关是可选的第二个参数。 如果该用户已经存在，EXDIR.BAT立即生成错误消息，然后退出命名的文件不执行署长。 此错误信息的EXDIR.BAT生成必须显示，“文件名已存在，中止EXDIR。”

应该是你的批处理写错误了。

错误~终止~！

你的批处理有问题~！