调用系统蜂鸣器方法

调用系统蜂鸣器方法：

 1.cmd命令：echo echo ^G>d:w.bat(输入时^G是组合键Ctrl+G输入的)；

 2.双击D盘下w.bat即可，以后在其他文件中引用可以复制粘贴过去即可^_^

响三次

@echo off
echo   
exit

响十次

@echo off
for /l %%i in (1,1,10) do (
set /p=<nul
)
pause>nul

应用实例

::拷贝NAND image到电脑SD卡中
@:lab4
@echo.
@if exist "j:" (goto continue4) else (echo 未检测到SD卡，请插入SD卡 && echo )::此处空格是DOS驱动蜂鸣器的ASII码
@goto main
@pause
:continue4
@echo 4 files to copy...please wait!
@if exist "j:EBOOTSD.nb0" del "j:EBOOTSD.nb0"
@echo 1.copy nk.bin...
@copy D:WINCE600OSDesignsSBC8100SBC8100RelDirSBC8100_ARMV4I_Release
k.bin j:
k.bin
@echo 2.copy MLO...
@copy D:WINCE600OSDesignsSBC8100SBC8100RelDirSBC8100_ARMV4I_ReleaseMLO j:MLO
@echo 3.copy EBOOTNAND.nb0 and rename it as"EBOOTSD.nb0"...
@copy D:WINCE600OSDesignsSBC8100SBC8100RelDirSBC8100_ARMV4I_ReleaseEBOOTNAND.nb0 j:EBOOTSD.nb0
@echo 4.copy XLDRNAND.nb0...
@copy D:WINCE600OSDesignsSBC8100SBC8100RelDirSBC8100_ARMV4I_ReleaseXLDRNAND.nb0 j:XLDRNAND.nb0
@echo Copy files done!
@goto main