@echo off
rem cd /d "%~dp0"
setlocal EnableDelayedExpansion

rem set "INPUT_FILE=file.txt"
set "INPUT_FILE=D:\Program Files (x86)\input.ini"
set "OUTPUT_FILE=D:\Program Files (x86)\output.ini"
set "DATE_TIME=%date:~0,4%%date:~5,2%%date:~8,2%%time:~0,2%%time:~3,2%%time:~6,2%"
set "BAK_FILE=D:\Program Files (x86)\common_bak%DATE_TIME%.ini"
copy "%INPUT_FILE%" "%BAK_FILE%"

rem 删除上次的输出文件
if exist "%OUTPUT_FILE%" del "%OUTPUT_FILE%"

for /f "usebackq tokens=1,2 delims=:" %%o in (`findstr /n .* "%INPUT_FILE%"`) do (
  rem echo %%p
  if "%%p" equ "" (
    rem 输出空行
    echo. >>"%OUTPUT_FILE%"
  ) else (
      for /f "tokens=1* delims==" %%c in ("%%p") do (
    	if /i "%%c"=="[SERVER_DATA_3]" (
    	  set "Mod_flag=true"
    	  rem echo ----------------!Mod_flag!------------
    	)
    	rem 包含字符串“#""[”则仅输出%%c，否则进行修改
    	echo %%c| findstr "# [" >nul && (
          set line=%%c
        ) || (
		  rem 修改键值对
		  if /i "!Mod_flag!" equ "true" (		  
    	    if /i "%%c" == "SERVER_USER" ( 
    	      rem echo %%d
    	      set line=%%c=cccccc
			  set "ChangeU=true"
    	    ) else if /i "%%c" == "SERVER_PASSWORD" ( 
    	       rem echo %%d
    	      set line=%%c=cccccc
			  set "ChangeP=true"
    	    ) else (
    	      set line=%%c=%%d
    	    )
			rem 全部修改完毕后，重置Mod_flag标识
			if /i "!ChangeU!" equ "true" (
			  if /i "!ChangeP!" equ "true" (
			    set "Mod_flag=false"
			  )
			)			
		  ) else (
    	    set line=%%c=%%d
    	  )
        )
        REM 在此处修改line变量的值
        echo !line!>>"%OUTPUT_FILE%"
      )
    )
)

move /y "%OUTPUT_FILE%" "%INPUT_FILE%"
endlocal
echo  "文件处理完成"
pause
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