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MFC MDI程序的窗口菜单无法正确显示 - C/C++ - 清泛网 - 专注C/C++及内核技术
...n looks for a pop-up menu containing standard Window menu commands such as ID_WINDOW_NEW and ID_WINDOW_TILE_HORZ.Override this member function if you have a Window menu that does not use the standard menu command IDs.
所以，只需要覆盖函数CMDIFrameWnd::GetWindowMenuPopup就可以解决问...
常用Sql - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...ists tablename;
mysql：建立索引Sql
CREATE TABLE tablename (
`ID` decimal(18,0) NOT NULL COMMENT '递增ID',
`FIELD_1` varchar(32) NOT NULL COMMENT '字段1',
`FIELD_2` varchar(32) NOT NULL COMMENT '字段2',
...
SQL中使用update inner join和delete inner join；Oracle delete join替代...
...tb_User usr
inner join tb_Address addr on usr.nAddressFK = addr.nAddressID
where usr.id=123
update的格式是
update t1 set t1.name=’Liu’ from t1 inner join t2 on t1.id = t2.tid
MySQL，ACCESS 写法如下：
Sql代码
UPDATE mem_world AS mw1 INNER JOIN mem_world AS ...
phpcms v9内容页/下载页更新时间（updatetime）为空的解决方法 - 更多技术 ...
... define('INDEX_HTML',true);
$catid = $_POST['info']['catid'] = intval($_POST['info']['catid']);
if(trim($_POST['info']['title'])=='') showmessage(L('title_is_empty'));
$category = $this->categorys[$catid];
...
PHPCMS判断首页列表页内页分类 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...页内页分类有一些有意思的PHPCMS页面判断，比如通过 {$catid} 就可以调出栏目ID，但我们在制作PHPCMS模板时，经常会遇到否栏目，比如首页，就可以这...有一些有意思的PHPCMS页面判断，比如通过 {$catid} 就可以调出栏目ID，但我们在...
常用Sql - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...name;
mysql：建立索引Sql
CREATE TABLE tablename (
`ID` decimal(18,0) NOT NULL COMMENT '递增ID',
`FIELD_1` &...
What is offsetHeight, clientHeight, scrollHeight?
...rence between offsetHeight , clientHeight and scrollHeight or offsetWidth , clientWidth and scrollWidth ?
4 Answer...
Flags to enable thorough and verbose g++ warnings
...is one to my build (only for optimized builds
for obvious reasons) and it didn't turn anything up, so it doesn't
seem to be an especially chatty warning, at least for the way I code.
I include it (even though code that triggers this warning isn't
necessarily wrong) because I believe in working with ...
How can I suppress column header output for a single SQL statement?
...)
Credit to ErichBSchulz for pointing out the -N alias.
To remove the grid (the vertical and horizontal lines) around the results use -s (--silent). Columns are separated with a TAB character.
mysql -s ...
use testdb;
select * from names;
id name
1 pete
2 john
3 mike
To output the data...
Prevent redirection of Xmlhttprequest
...hile observing
the same-origin request event rules.
They were considering it for a future release:
This specification does not include
the following features which are being
considered for a future version of
this specification:
Property to disable following redirects;
...