MovableType的MarkDown格式不支持删除线。下面是别人写的patch.
--- mt.bk/plugins/Markdown/Markdown.pl 2012-05-10 05:03:28.000000000 -0400 +++ mt/plugins/Markdown/Markdown.pl 2012-08-21 04:29:37.000000000 -0400 @@ -971,6 +971,10 @@ $text =~ s{ (\*|_) (?=\S) (.+?) (?<=\S) \1 } {<em>$2</em>}gsx; + # These lines added by Bill Eccles, 2008-07-04 + $text =~ s{ (\s) (~~) (?=\S) (.+?) (?<=\S) (~~) } + {$1<strike>$3</strike>}gsx; + return $text; }