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Selecting only first-level elements in jquery
...ave the initial ul, you can use the children() method, which will only consider the immediate children of the element. As @activa points out, one way to easily select the root element is to give it a class or an id. The following assumes you have a root ul with id root.
$('ul#root').children('li'...
How to get the system uptime in Windows? [closed]
...important information regarding why the computer was rebooted and when it did so. We need to look at Event ID 6005, which is an event that tells us that the computer has just finished booting, but you should be aware of the fact that there are virtually hundreds if not thousands of other event types...
Scroll to bottom of div?
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Here's what I use on my site:
var objDiv = document.getElementById("your_div");
objDiv.scrollTop = objDiv.scrollHeight;
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Are nested transactions allowed in MySQL?
...noDB supports SAVEPOINTS.
You can do the following:
CREATE TABLE t_test (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB;
START TRANSACTION;
INSERT
INTO t_test
VALUES (1);
SELECT *
FROM t_test;
id
---
1
SAVEPOINT tran2;
INSERT
INTO t_test
VALUES (2);
SELECT *
FROM t_test;
id...
Adding attribute in jQuery
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You can add attributes using attr like so:
$('#someid').attr('name', 'value');
However, for DOM properties like checked, disabled and readonly, the proper way to do this (as of JQuery 1.6) is to use prop.
$('#someid').prop('disabled', true);
...
c++ Timer使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...均提供实例参考。窗口应用程序使用Timer：
#define TIMER_ID 1000 //定时器ID，可任意。触发后回调函数中用于区别不同的定时器以执行不同的任务
SetTimer(TIMER_ID, 1000 , NULL); //启动定时器，1秒后触发
KillTimer(TIMER_ID); //取消定时器
...
passing xxx as \'this\' argument of xxx discards qualifiers - C/C++ - 清泛网 - 专注C/C++及内核技术
...lude <set>
using namespace std;
class StudentT {
public:
int id;
string name;
public:
StudentT(int _id, string _name) : id(_id), name(_name) {
}
int getId() { // 应该声明为const成员
return id;
}
string getName() { // 应该声明为con...
解决：ORA-00054:资源正忙,要求指定NOWAIT - 数据库(内核) - 清泛网 - 专注...
...出所有被锁的对象，定位出哪个回话占用
select l.session_id,o.owner,o.object_name from v$locked_object l,dba_objects o where l.object_id=o.object_id
结果：
session_id owner object_name
158 SA TEST_1
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对比想要创建的索引，定位哪些会话需要被删除
2：...
SSH免密码登陆教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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2、ssh-keygen -t [rsa|dsa]，将会生成密钥文件和私钥文件 id_rsa,id_rsa.pub或id_dsa,id_dsa.pub
3、将 .pub 文件复制到B机器的 .ssh 目录， 并 cat id_dsa.pub >> ~/.ssh/authorized_keys
4、大功告成，从A机器登录B机器的目标账户，不再需要密码了
ssh-k...
Phpcms v9 实现首页|列表页|内容页点击量调用的代码 - 更多技术 - 清泛网 -...
...容页的点击量获取比较简单，一般默认模板中自带：<span id="hits">< span>...<script language="JavaScript" src="{APP_PATH}api.p...1、内容页的点击量获取比较简单，一般默认模板中自带：
<span id="hits"></span>
...
<script language="JavaScript" src="{APP_...