在批处理文件中执行子字符串的最佳方法是什么？

@echo off
setlocal enabledelayedexpansion

for /f "tokens=1,2 delims=:" %%a in ('findstr /N /C:"search_text" input.txt') do (
  set line=%%b
  set line=!line:*search_text=!
  echo !line!
)

@echo off
setlocal enabledelayedexpansion

for /f "tokens=1,2 delims=:" %%a in ('findstr /N /C:"search_text" input.txt') do (
  set line=%%b
  set line=!line:~0,-1!
  echo !line!
)

@echo off
setlocal enabledelayedexpansion

for /f "tokens=1,2 delims=:" %%a in ('findstr /N /C:"search_text1" /C:"search_text2" input.txt') do (
  set line=%%b
  set line=!line:*search_text1=!
  set line=!line:search_text2=!
  echo !line!
)