batch-file - windows批处理文件编程

Question

我想在 Windows XP 中使用 dos 批处理文件编程在现有文本文件中的特定行写入一行文本。我还想输入用户的行号。任何帮助将不胜感激。

Answer 1

提示用户的例子:

:MENU

    SET /P TYPE=Type the line number and press enter:
    if "%TYPE%"=="1"                               goto ONE
    if "%TYPE%"=="2"                               goto TWO
    if "%TYPE%"=="3"                               goto THREE
    if "%TYPE%"=="4"                               goto FOUR
    if "%TYPE%"=="5"                               goto FIVE
    goto MENU

注意:带L选项的FOR命令可以产生更大的交叉校验；如需更多信息，请输入 c:>FOR/?

FOR/L %variable IN (start,step,end) DO 命令[命令参数]

The set is a sequence of numbers from start to end, by step amount.
So (1,1,5) would generate the sequence 1 2 3 4 5 and (5,-1,1) would
generate the sequence (5 4 3 2 1)

FOR/L %%a IN (1,1,1000) DO if "%TYPE%"=="%%a"goto :VALIDNUM

@echo off
rem this only prompts the user for a number

set VALIDNUM=

:MENU
cls
echo.
echo.
If NOT "%VALIDNUM%"=="" echo the number is %VALIDNUM%
echo.

SET /P TYPE=Type a line number and press enter:

FOR /L %%a IN (1,1,1000) DO if "%TYPE%"=="%%a" set VALIDNUM=%TYPE%

goto MENU