阳历2月有29天吗?为什么?

页面:/news/view-933407/ | 耗时:0.7764 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=933407 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=933407 LIMIT 0,1
select * from tbl_Articles_sphinx where id=933407 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(990149,1214247,496895,3475321,951612,546052,3480285,2018671,3460863,605696,922118,631581,751318,808114,1159679,481034,919537,1671253,492330,670011,1781580,1150105,1541530,791474,865258,798966,967594,2387936,2067669,522870) ORDER BY field (ArticleID,990149,1214247,496895,3475321,951612,546052,3480285,2018671,3460863,605696,922118,631581,751318,808114,1159679,481034,919537,1671253,492330,670011,1781580,1150105,1541530,791474,865258,798966,967594,2387936,2067669,522870)