c# 显示过去了多长时间的函数
public string howlongbeforenow
{
get
{
var ts = new timespan(datetime.utcnow.ticks - createddate.ticks);
var delta = ts.totalseconds;
const int second = 1;
const int minute = 60 * second;
const int hour = 60 * minute;
const int day = 24 * hour;
const int month = 30 * day;
if (delta < 0)
{
throw new invaliddataexception("the createddate can not be gather than today.");
}
if (delta < 1 * minute)
{
return ts.seconds == 1 ? "1 second ago" : ts.seconds + " seconds ago";
}
if (delta < 2 * minute)
{
return "1 minute ago";
}
if (delta < 45 * minute)
{
return ts.minutes + " minutes ago";
}
if (delta < 90 * minute)
{
return "1 hour ago";
}
if (delta < 24 * hour)
{
return ts.hours + " hours ago";
}
if (delta < 48 * hour)
{
return "yesterday";
}
if (delta < 30 * day)
{
return ts.days + " days ago";
}
if (delta < 12 * month)
{
var months = convert.toint32(math.floor((double)ts.days / 30));
return months <= 1 ? "1 month ago" : months + " months ago";
}
var years = convert.toint32(math.floor((double)ts.days / 365));
return years <= 1 ? "1 year ago" : years + " years ago";
}
}
css：
.how-long-ago {
font-style: italic;
color: #777;
}
以上就是c# 显示过去了多长时间的函数的内容。