我可以使用Emacs中的哪些命令将当前日期和时间插入文件的文本缓冲区中？
（例如，记事本中的等效项只是按F5键，这是记事本唯一有用的功能！）
Answers:
C-u M-! date
M-!是该功能的键盘快捷键shell-command。因此M-! date将调用shell命令date，并在输出区域中显示它（最小缓冲区，因为输出足够短以适合显示）。该C-u是一个前缀参数，使得M-!把它的输出电流缓冲液代替。
放入您的.emacs文件：
;; ====================
;; insert date and time
(defvar current-date-time-format "%a %b %d %H:%M:%S %Z %Y"
"Format of date to insert with `insert-current-date-time' func
See help of `format-time-string' for possible replacements")
(defvar current-time-format "%a %H:%M:%S"
"Format of date to insert with `insert-current-time' func.
Note the weekly scope of the command's precision.")
(defun insert-current-date-time ()
"insert the current date and time into current buffer.
Uses `current-date-time-format' for the formatting the date/time."
(interactive)
(insert "==========\n")
; (insert (let () (comment-start)))
(insert (format-time-string current-date-time-format (current-time)))
(insert "\n")
)
(defun insert-current-time ()
"insert the current time (1-week scope) into the current buffer."
(interactive)
(insert (format-time-string current-time-format (current-time)))
(insert "\n")
)
(global-set-key "\C-c\C-d" 'insert-current-date-time)
(global-set-key "\C-c\C-t" 'insert-current-time)
"\C-c\C-d"我什么也没有发生。实际上，C-d键入时会删除当前行。但是我认为为什么C-c不起作用。
我使用了以下简短摘要：
(defun now ()
"Insert string for the current time formatted like '2:34 PM'."
(interactive) ; permit invocation in minibuffer
(insert (format-time-string "%D %-I:%M %p")))
(defun today ()
"Insert string for today's date nicely formatted in American style,
e.g. Sunday, September 17, 2000."
(interactive) ; permit invocation in minibuffer
(insert (format-time-string "%A, %B %e, %Y")))
他们最初来自journal.el
.emacs.文件中并保存，然后将光标（点）移至每个函数的末尾括号，然后M-x M-e对每个函数使用它来使用。现在，您可以在任何位置插入M-x now或使用M-x today。
对于插入日期：
M-x org-time-stamp
对于插入日期时间：
C-u M-x org-time-stamp
您可以为此命令绑定一个全局密钥。
org-mode的方法非常人性化，您可以从日历中选择任何日期。
org-time-stamp指定org-time-stamp-formats。;; 以自定义格式插入日期。（let（（（org-time-stamp-formats'（“％Y-％m-％d”。“％Y-％m-％d％H：％M：％S”）））（org-time-盖章））;; 以自定义格式插入日期。（let（（（org-time-stamp-formats'（“％Y-％m-％d”。“％Y-％m-％d％H：％M：％S”）））（org-time-戳'（4）））
这是我前一段时间写的一个包，可以满足您的要求。
http://github.com/rmm5t/insert-time.el/tree/master/insert-time.el
(require 'insert-time)
(define-key global-map [(control c)(d)] 'insert-date-time)
(define-key global-map [(control c)(control v)(d)] 'insert-personal-time-stamp)
M-1 M-！日期
这会导致将您运行的shell命令插入到当前正在编辑的缓冲区中，而不是新的缓冲区中。
谢谢，CMS！我的变化，无论它的价值是什么，都使我足够高兴：
(defvar bjk-timestamp-format "%Y-%m-%d %H:%M"
"Format of date to insert with `bjk-timestamp' function
%Y-%m-%d %H:%M will produce something of the form YYYY-MM-DD HH:MM
Do C-h f on `format-time-string' for more info")
(defun bjk-timestamp ()
"Insert a timestamp at the current point.
Note no attempt to go to beginning of line and no added carriage return.
Uses `bjk-timestamp-format' for formatting the date/time."
(interactive)
(insert (format-time-string bjk-timestamp-format (current-time)))
)
我将其放在由.emacs调用的文件中，使用：
(load "c:/bjk/elisp/bjk-timestamp.el")
这两者都使修改变得更容易，而又没有冒险破坏我的.emacs中其他内容的麻烦，并且使我有一天可以很容易地进入一个点，以实际了解Emacs Lisp编程的全部内容。
关于我的n00b技术的PS评论非常受欢迎。
这是我的看法。
(defun modi/insert-time-stamp (option)
"Insert date, time, user name - DWIM.
If the point is NOT in a comment/string, the time stamp is inserted prefixed
with `comment-start' characters.
If the point is IN a comment/string, the time stamp is inserted without the
`comment-start' characters. If the time stamp is not being inserted immediately
after the `comment-start' characters (followed by optional space),
the time stamp is inserted with “--” prefix.
If the buffer is in a major mode where `comment-start' var is nil, no prefix is
added regardless.
Additional control:
C-u -> Only `comment-start'/`--' prefixes are NOT inserted
C-u C-u -> Only user name is NOT inserted
C-u C-u C-u -> Both prefix and user name are not inserted."
(interactive "P")
(let ((current-date-time-format "%a %b %d %H:%M:%S %Z %Y"))
;; Insert a space if there is no space to the left of the current point
;; and it's not at the beginning of a line
(when (and (not (looking-back "^ *"))
(not (looking-back " ")))
(insert " "))
;; Insert prefix only if `comment-start' is defined for the major mode
(when (stringp comment-start)
(if (or (nth 3 (syntax-ppss)) ; string
(nth 4 (syntax-ppss))) ; comment
;; If the point is already in a comment/string
(progn
;; If the point is not immediately after `comment-start' chars
;; (followed by optional space)
(when (and (not (or (equal option '(4)) ; C-u or C-u C-u C-u
(equal option '(64))))
(not (looking-back (concat comment-start " *")))
(not (looking-back "^ *")))
(insert "--")))
;; If the point is NOT in a comment
(progn
(when (not (or (equal option '(4)) ; C-u or C-u C-u C-u
(equal option '(64))))
(insert comment-start)))))
;; Insert a space if there is no space to the left of the current point
;; and it's not at the beginning of a line
(when (and (not (looking-back "^ *"))
(not (looking-back " ")))
(insert " "))
(insert (format-time-string current-date-time-format (current-time)))
(when (not (equal option '(16))) ; C-u C-u
(insert (concat " - " (getenv "USER"))))
;; Insert a space after the time stamp if not at the end of the line
(when (not (looking-at " *$"))
(insert " "))))
我更喜欢将此绑定到C-c d。