linux c时间操作相关函数
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2022-07-13 17:21:01
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1. linux c的时间操作的函数关系图如下:
2. strftime时间格式化的说明如下:
%a | Abbreviated weekday name * | Thu |
%A | Full weekday name * | Thursday |
%b | Abbreviated month name * | Aug |
%B | Full month name * | August |
%c | Date and time representation * | Thu Aug 23 14:55:02 2001 |
%d | Day of the month (01-31) | 23 |
%H | Hour in 24h format (00-23) | 14 |
%I | Hour in 12h format (01-12) | 02 |
%j | Day of the year (001-366) | 235 |
%m | Month as a decimal number (01-12) | 08 |
%M | Minute (00-59) | 55 |
%p | AM or PM designation | PM |
%S | Second (00-61) | 02 |
%U | Week number with the first Sunday as the first day of week one (00-53) | 33 |
%w | Weekday as a decimal number with Sunday as 0 (0-6) | 4 |
%W | Week number with the first Monday as the first day of week one (00-53) | 34 |
%x | Date representation * | 08/23/01 |
%X | Time representation * | 14:55:02 |
%y | Year, last two digits (00-99) | 01 |
%Y | Year | 2001 |
%Z | Timezone name or abbreviation | CDT |
%% | A % sign | % |