批處理如何向文本輸入pause

[已解決]批處理如何向文本輸入pause

echo>>2.cmd @echo off
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v MSI3 /t reg_dword /d 1 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v State /t reg_dword /d 1 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v Uninstallable /t reg_dword /d 0 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v LUAEnabled /t reg_dword /d 0 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v PatchType /t reg_dword /d 0 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v Installed /d %date:~0,4%%date:~5,2%%date:~8,2% /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v DisplayName /d Update for Outlook 2003: Junk E-mail Filter (KB2596520): OUTLFLTR /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v MoreInfoURL /d http://support.microsoft.com/kb/2596520 /f
echo pause >>2.cmd
nclick="copycode($('code0'));">復制代碼

運行正常

echo>>2.cmd @echo off
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v MSI3 /t reg_dword /d 1 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v State /t reg_dword /d 1 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v Uninstallable /t reg_dword /d 0 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v LUAEnabled /t reg_dword /d 0 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v PatchType /t reg_dword /d 0 /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v Installed /d %date:~0,4%%date:~5,2%%date:~8,2% /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v DisplayName /d Update for Outlook 2003: Junk E-mail Filter (KB2596520): OUTLFLTR /f
echo>>2.cmd reg add HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionInstallerUserDataS-1-5-18Products4080110900063D11C8EF10054038389CPatchesB4F5179064BDB424182F1D0B00C98CF6 /v MoreInfoURL /d http://support.microsoft.com/kb/2596520 /f
echo>>2.cmd pause
nclick="copycode($('code1'));">復制代碼

2.cmd最后一行變成“ECHO 處于打開狀態。”如果把echo>>2.cmd pause改成echo>>2.cmd pause ^>nul ^>nul，結果2.cmd最后一行變成pause >nul 2>nul請問這是什么原因呢？