如果计算机只有一个软盘驱动器（例如，驱动器 A），但想比较两个软盘，请键入：
diskcomp a:a:
Diskcomp 会提示您根据需要插入每个软盘。
下面的范例说明如何在批处理程序（该程序在 if 命令行上使用 errorlevel 参数）中处理 diskcomp 退出代码：
rem Checkout.bat compares the disks in drive A and B echo off diskcomp a: b: if errorlevel 4 goto ini_error if errorlevel 3 goto hard_error if errorlevel 1 goto no_compare if errorlevel 0 goto compare_ok :ini_error echo ERROR: Insufficient memory or command invalid goto exit :hard_error echo ERROR: An irrecoverable error occurred goto exit :break echo "You just pressed CTRL+C" to stop the comparison goto exit :no_compare echo Disks are not the same goto exit :compare_ok echo The comparison was successful; the disks are the same goto exit :exit