DOS特殊字符转义方法

http://www.robvanderwoude.com/escapechars.php

期望得到的字符	转义后字符	说明
%	%%	May not always be required in doublequoted strings, just try
^	^^	May not always be required in doublequoted strings, but it won't hurt
&	^&
<</code>	^<</code>
>	^>
|	^|
'	^'	Required only in the FOR /F "subject" (i.e. between the parenthesis),unless backq is used
`	^`	Required only in the FOR /F "subject" (i.e. between the parenthesis), ifbackq is used
,	^,	Required only in the FOR /F"subject" (i.e. between the parenthesis), even in doublequoted strings
;	^;
=	^=
(	^(
)	^)
!	^^!	Required only when delayed variable expansionis active
\	\\	Required only in the regex pattern of FINDSTR
[	\[
]	\]
"	\"

原文摘录自： DOS Escape Characters