select * from member where FIND_IN_SET(id,'1,2,3,4,5');
使用find_in_set函數一次返回多條記錄id 是一個表的字段 然後每條記錄分別是id等於1,2,3,4,5的時候
有點類似in (集合)
select * from member where id in (1,2,3,4,5);
select * from member where FIND_IN_SET(id,'1,2,3,4,5');
使用find_in_set函數一次返回多條記錄select * from member where id in (1,2,3,4,5);
shell腳本獲取腳本所在目錄 執行腳本的父目錄不一定是當前的工作目錄。 url=$(dirname $(readlink -f $0))