摘要：冒号(:)等价于左花括号({)，endif等价于右花括号(}); 举个样例吧： <?php if ($a<0): ?>是负数拉<?php endif; ?>上面的语句等同于<?php if （$a<0）{ ?>是负数拉<?php } ?> PHP中那些语法有替代语法？ 流程控制（包含if,while 阅读全文

摘要：DELETE FROM ywgl_jiean202001 where id not in (select bid from (select min(id) as bid from ywgl_jiean202001 group by exam_num,app_num,tongji_month,jiea 阅读全文