Question

批处理替换a.txt中的空格为逗号.这样写哪个地方不对?

@echo off
setlocal enabledelayedexpansion
set i=1
set t
for /f "tokens=* delims=" %%a in (1.txt) do (
set ch=%%a
set ch=!ch: =,!
if %t%<>%ch% echo !ch!>>2.txt
else set %t%==%ch%
@echo %i%
set /a i=%i%+1
)

Answer 1

收起
批处理替换a.txt中的空格为逗号.这样写哪个地方不对?
提问者： zgrdl
@echo off
setlocal enabledelayedexpansion
set i=1
set t
for /f "tokens=* delims=" %%a in (1.txt) do (
set ch=%%a
set ch=!ch: =,!
echo !ch!>>2.txt
)

Answer 2

1. set t 是要显示t变量的值么？没有定义后面的%t%拿什么去比较

2. if else用法是：if %i%==1 (echo yes) else echo no 括号不能省略

3. set %t%==%ch% 是要将%ch%的值赋给t么，要这样set t=%ch%