批量展望未来？变量

Question

如何做到这一点？

set newline=^& echo. 
set header=my header^%newline% %abc%^%newline%%def%^%newline%end

..。

set abc=some text 
set def=some more text 
echo %header%

..。

set abc=hello
set def=there
echo %header%

预期输出：

my header
some text
some more text
end
my header
hello
there
end

立即输出：(不显示abc和def值)

my header


end
my header


end

提前感谢！感谢任何解决方案。

更新:我正在编写一个总结执行结果的脚本，并将其显示在输出的第一行，例如

c:\> myScript.bat
----------------------------------------
Execution failed with cmd1=UP, cmd2=DOWN
cmd2 failed
----------------------------------------

COMMAND: cmd1
[output of cmd1]

cmd1 result is "UP"

COMMAND: cmd2
[outout of cmd2]

cmd2 result is "DOWN"

Answer 1

@echo off
REM Creating a Newline variable (the two blank lines are required!)
set NLM=^


set NL=^^^%NLM%%NLM%^%NLM%%NLM%
:::::
set header=my header%NL% %abc%%NL%%def%%NL%end

尝尝这个。

或

setlocal EnableDelayedExpansion
(set \n=^
%=Do not remove this line=%
)

 set header=my header!\n! %abc%!\n!%def%!\n!end