php
echo "";
echo date("Y-m-d",strtotime("now")), "\n";
echo "";
echo date("Y-m-d",strtotime...-2;//上季度是第几季度
echo '上上季度:';
echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season3-3+1,1,date('Y'))...),"\n";
echo date('Y-m-d H:i:s', mktime(23,59,59,$season3,date('t',mktime(0, 0 , 0,$season*3,1,date("...'上季度:';
echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season3-3+1,1,date('Y'))),"\n";
echo date('...H:i:s', mktime(0, 0, 0,$season3-3+1,1,date('Y'))),"\n";
echo date('Y-m-d H:i:s', mktime(23,59,59,$season3