标题: 代码中％～2是什么意思？请指教
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作者: jellord
时间: 2007-3-30 11:43
标题: 代码中％～2是什么意思？请指教
@echo off
::调用格式：
call :select "ip address" "ip"
call :select "Physical Address" "mac"
call :select "Default Gateway" "gateway"
call :select "DNS Servers" "dns"
call :select "Description" "netcard"
:: 演示效果
echo IP:%ip%
echo MAC:%mac%
echo DNS:%dns%
echo GATEWAY:%gateway%
echo NETCARD:%netcard%
pause>nul
goto :eof
::**************************************************************
:: 解析ipconfig命令输出通用函数
::**************************************************************
:select
for /f "tokens=2 delims=:" %%i in ('ipconfig /all ^| findstr /i /c:%1') do if not "!%~2!" == "" set %~2=%%i
goto :eof
if not "!%~2!" == "" set %~2=%%i以上代码看不懂，上面没有用延迟变量，为什么%~2要加！呢？另外%~2又是什么意思呢？请指教。
作者: flyinspace
时间: 2007-3-30 13:31
%~2 是表示把 “ip"的引号删除。。
至于为什么要加!
我也不明白。
作者: bjsh
时间: 2007-3-30 21:12
作者: xycoordinate
时间: 2007-3-30 21:20
......
call :select "ip address" "ip"
call :select "Physical Address" "mac"
call :select "Default Gateway""gateway"
call :select "DNS Servers" "dns"
call :select "Description" "netcard"
......
:select
for /f "tokens=2 delims=:" %%i in ('ipconfig /all ^| findstr /i /c:%1') do if not "!%~2!" == "" set %~2=%%i
......
%~1为红色
%~2为绿色
[ Last edited by xycoordinate on 2007-3-30 at 08:28 AM ]
作者: 422904z
时间: 2007-9-3 17:39