1. 先设个变量 $logdate
map $time_iso8601 $logdate {
'~^(?<ymd>\d{4}-\d{2}-\d{2})' $ymd;
default 'date-not-found';
}map $time_iso8601 $logdate 1. 先设个变量 $logdate
map $time_iso8601 $logdate {
'~^(?<ymd>\d{4}-\d{2}-\d{2})' $ymd;
default 'date-not-found';
}map $time_iso8601 $logdate