中国DOS联盟

在for中如何把字符串连接成一个新的字符变量呢?
c:\MAC.txt内容为:
************************************************
Physical Address. . . . . . . . . : 00-1A-3F-6A-5A-0B
Physical Address. . . . . . . . . : 00-1A-CE-13-B8-5B
Physical Address. . . . . . . . . : 00-1A-C5-BA-BC-11
************************************************

请问用for如何把c:\MAC.txt的内容串00-1A-3F-6A-5A-0B|00-1A-CE-13-B8-5B|00-1A-C5-BA-BC-11组合成为一个字符变量呀?

@echo off
setlocal enabledelayedexpansion
for /f "delims=: tokens=2" %%i in (c:\MAC.txt) do set str=!str!%%i｜
echo %str%

pause>nul

@echo off&setlocal enabledelayedexpansion
for /f "tokens=1* delims=:" %%a in (tmp.txt) do (
set c=%%b
if not defined a (<nul set/p pp=!c:~1,17!>>oo.txt&set a=1) else (<nul set/p pp=!pp!^|!c:~1,17!>>oo.txt)
)
start "" oo.txt

还有就是，希望LZ不要一题多帖，那样你会被说的，好自为之..............

知道了!谢谢大家先!