%date%,%time%:
%date:~0,4%%date:~5,2%%date:~8,2%-%time:~0,2%%time:~3,2%%time:~6,2%-%date:~11,2%
%date:~i,n% --> i = 日期字符串中的索引位子(从零开始),n=截取几位字符。
%time:~i,n% --> 同上。
%date%,%time%:
%date:~0,4%%date:~5,2%%date:~8,2%-%time:~0,2%%time:~3,2%%time:~6,2%-%date:~11,2%
%date:~i,n% --> i = 日期字符串中的索引位子(从零开始),n=截取几位字符。
%time:~i,n% --> 同上。