安装相关依赖
npm install jquery
npm install jsdom
引入方式
const jsdom = require('jsdom');
const {JSDOM} = jsdom;
const {document} = (new JSDOM('<!doctype html><html><body></body></html>')).window;
global.document = document;
const window = document.defaultView;
const $ = require('jquery')(window);去掉data目录下的ib_logfile0 ib_logfile1这两个文件，mv 然后重新启动mariadb
这个属于不规范操作模式，更详细的方法是要做恢复设置的执行xfs_repair /dev/mapper/centos-root 或者xfs_repair /dev/mapper/centos-root -L
# xfs_repair /dev/mapper/centos-root -L
# reboot$arr=[0,1,2,3];
$newArr = array_map(function ($value){
return 'str_'.$value;
},$arr);
$newArr就变成了['str_0','str_1','str_2','str_3']
SELECT * FROM tb_item AS T WHERE 1>(
SELECT COUNT(id)
FROM tb_item WHERE
`item_category_id`=T.`item_category_id` AND id>T.id)