rails中的时间显示格式【转】
在rails中需要显示时间时,格式化时间的方法一般选用strftime,下面是关于strftime的一些介绍
strftime Format Codes
| Year | Example | |
| %Y | year with century | 2010 |
| %y | year without century | 10 |
| %C | century number (year divided by 100) | 20 |
| Month | Example | |
| %B | full month name | January |
| %b | abbreviated month name | Jan |
| %h | same as %b | Jan |
| %m | month as number | (01-12) |
| Week | Example | |
| %U | week number of the year, Sunday as first day of week | (00-53) |
| %W | week number of the year, Monday as first day of week | (00-53) |
| Day | Example | |
| %A | full weekday name | Wednesday |
| %a | abbreviated weekday name | Wed |
| %d | day of the month | (01-31) |
| %e | day of the month, single digits preceded by space | ( 1-31) |
| %j | day of the year | (001-366) |
| %w | weekday as a number, with 0 representing Sunday | (0-6) |
| %u | weekday as a number, with 1 representing Monday | (1-7) |
| Time | Example | |
| %H | hour (24-hour clock) | (00-23) |
| %k | hour (24-hour clock); single digits preceded by space | ( 0-23) |
| %I | hour (12-hour clock) | (01-12) |
| %l | hour (12-hour clock); single digits preceded by space | ( 1-12) |
| %M | minute | (00-59) |
| %S | seconds | (00-59) |
| %p | either AM or PM | AM |
| %Z | timezone name or abbreviation | EDT |
| %z | timezone offset from UTC | -0400 |
| Summaries | Example | |
| %D | date, same as %m/%d/%y | 05/16/07 |
| %v | date, same as %e-%b-%Y | 16-May-2007 |
| %F | date, same as %Y-%m-%d | 2007-05-16 |
| %R | time, 24 hour notation, same as %H:%M | 18:06 |
| %T | time, 24 hour notation, same as %H:%M:%S | 18:06:15 |
| %r | time, am/pm notation, same as %I:%M:%S %p | 06:06:15 PM |
| Formatting | |
| %n | newline character |
| %t | tab character |
| %% | percent character |
| Less common formats | |
| %s | number of seconds since the Epoch, UTC |
| %c | national date and time representation |
| %+ | national date and time representation |
| %x | national date representation |
| %X | national time representation |
| %G | year with century, starting on first Monday where week has 4 or more days. |
| %g | year without century, starting on first Monday where week has 4 or more days. |
| %V | week number of the year, starting on first Monday where week has 4 or more days. |
rails 实现 动态显示时间
2010-12-17 16:25
视图：
<%= javascript_include_tag :defaults %> <%= periodically_call_remote :url => new_ajax_fun_path, :update =>'result', :frequency => 1 %> <div id="result"></div>
控制器：
def new
respond_to do |wants|
wants.js {render :text => Time.now.strftime("%Y-%m-%d %H:%M:%S")}
end
end