[教學] 時間擷取成字串(Time to string)

今天來分享的是如何擷取到時間變成字串。

就是用這個Format Data/Time String

至於時間String的格式，可以自己去制定，以下是help裡面的說明。

The following codes are some of the most commonly used time format codes:

%c displays locale-specific date/time time-related format codes include %X (locale-specific time).

%H (hour, 24-hour clock), %I (hour, 12-hour clock), %M (minute), %S (second).

%<digit>u (fractional seconds with <digit> precision)

%p (a.m./p.m. flag); date-related format codes include %x (locale-specific date)

%y (year within century)

%Y (year including century)

%m (month number)

%b (abbreviated month name),

%d (day of month)

%a (abbreviated weekday name).


所以我們想存什麼樣的形式，基本上都有。

舉個例，我希望存檔格式為：年_月_日_星期_時_分_秒

字串只要改成這樣即可

應該算蠻簡單的，以後存檔的每筆資料都可以用這樣子記錄時間下來。

Patrick