摘要：
BEGIN SET new.crawtime=NOW(); END未完...SELECT * FROM `ptf_crawl` LEFT JOIN `ptf_crawl_text` ON `ptf_crawl`.`crawl_id` = `ptf_crawl_text`.`crawl_id` WHERE `ptf_crawl`.`crawl_id` IS NULL;SELECT NOW();SELECT CURRENT_DATE;SELECT CURRENT_TIME; 阅读全文
