如何格式化时差值,使用time-subtract
计算?考虑这个简单的例子:格式与%H的时差
(let*
((before (current-time))
(after (progn (sit-for 0.25) (current-time)))
(diff (time-subtract after before)))
(insert (format "before: %s--%s\n" before (format-time-string "%Hh%Mm%S.%3Ns" before)))
(insert (format "after: %s--%s\n" after (format-time-string "%Hh%Mm%S.%3Ns" after)))
(insert (format "diff: %s--%s--%s\n" diff (format-time-string "%s.%3Ns" diff)
(format-time-string "%Hh%Mm%S.%3Ns" diff))))
评价其插入以下:
before: (22616 21856 296901 800000)--13h47m12.296s after: (22616 21856 552345 800000)--13h47m12.552s diff: (0 0 255444 0)--0.255s--16h00m00.255s
在两个时间戳之间的差是大约250毫秒。但使用格式格式化它"%Hh%Mm%S.%3Ns"
产生16.
它不应该是0吗?
您可能想通过[接受答案]关闭您的问题(http://meta.stackexchange.com/q/5234/215439) – sds