::@echo off
setlocal enabledelayedexpansion
for %%i in (C:\Users\guess\Desktop\dic*.bak) do (
for /f %%x in (%%i) do (
echo %%x
set str_test=%%x
set str_test=%str_test:1=a%
echo %str_test%
echo %str_test% >> C:\Users\guess\Desktop\dic\test.txt
)
)
pause
exit
实现获取文件中内容替换获取字符中1位a，为什么str_test输出为空？