2008年3月10日随笔档案 - CSST SOFT STUDIO LOG

随笔- 13 文章- 0 评论- 20

2008年3月10日

网址是http://www.csstsoft.com

posted @ 2008-06-07 08:54 CSST SOFT STUDIO LOG 阅读(22) | 评论 (0) | 编辑

摘要: 现假设有一系列产品我们需要使用软件控制其运作,我们可以通过向设备发送各种指令来达到此要求,首先由于产品种类较多,而且有些产品是纵向升级的,升级之后的产品基本上保持原有功能基础上加了些新功能,基于此要求,我们在设计相应类时,可以使用继承的方法,通信基类使用抽象类不允许直接实例化,仅提供一般串口操作的方法,比如发送指令及关串口等操作(初始化串口及打开串口操作在构造函数中完成),这样有任何产品只要从这个... 阅读全文

posted @ 2008-05-01 08:15 CSST SOFT STUDIO LOG 阅读(143) | 评论 (1) | 编辑

没有Javascript,纯CSS下拉菜单-IE,FF

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd" [ <!ELEMENT a (#PCDATA | table)* > ]>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
<title>纯CSS下拉菜单，兼容IE和FF</title>

#head {height:145px; border:0;}

#positioner {clear:both; position:relative; left:1px; z-index:100;}
#ads {position:relative; z-index:10;}
.menu {display:none;}
#noniemenu {position:absolute;}

#noniemenu .holder ul {padding:0; margin:0;}
#noniemenu .holder ul li {list-style-type: none;}
#noniemenu .holder li {}
#noniemenu .holder li ul {display: none;}
#noniemenu .holder li:hover > ul#a3 {display:block; position:absolute; left:105px; margin-top:-20px; border:1px solid #000;}
#noniemenu .holder .bold {font-weight:bold;}

#noniemenu .holder {
color:#fff;
width:104px;
height:18px;
display:block;
overflow:hidden;
float:left;
border:1px solid #000;
margin-right:1px;
font-size:10px;
}
#noniemenu .holder:hover {
height:auto;
}
#noniemenu a.outer, #noniemenu a.outer:visited {
color:#fff;
width:104px;
line-height:18px;
display:block;
background:#e09222;
text-align:center;
text-decoration:none;
font-family: verdana, arial, sans-serif;
}
#noniemenu a.outer:hover {
background:#697210;
overflow:visible;
}
#noniemenu div.open {display:none;}
#noniemenu a.inner, #noniemenu a.inner:visited {
display:block;
width:104px;
height:18px;
line-height:18px;
border-bottom:1px solid #000;
text-decoration:none;
color:#000;
background:#eee;
text-align:center;
}
#noniemenu a.second {font-weight:bold;}
#noniemenu a.inner:hover {
background:#add;
}
</style>

<!--[if lte IE 6]>
<style type="text/css">
body {margin-top:-8px;}
#head {height:147px;}
#noniemenu {display:none;}
.menu {display:block; position:absolute;}
.menu a.outer, .menu a.outer:visited {
color:#fff;
width:104px;
height:18px;
display:block;
background:#e09222;
border:1px solid #000;
margin-right:1px;
text-align:center;
float:left;
text-decoration:none;
font-family: verdana, arial, sans-serif;
font-size:10px;
line-height:18px;
overflow:hidden;

}
.menu a.outer:hover {
background:#697210;
overflow:visible;
}
.menu a.outer:hover table.first {
display:block;
background:#eee;
border-collapse:collapse;
}
.menu a.inner, .menu a.inner:visited {
display:block;
width:102px;
height:18px;
border-bottom:1px solid #000;
text-decoration:none;
color:#000;
font-family: verdana, arial, sans-serif;
font-size:10px;
text-align:center;
}
.menu a.inner:hover {
background:#add;
}

.menu a.outer table.first a.second {
height:18px;
line-height:18px;
overflow:hidden;
font-weight:bold;
}
.menu a.outer table.first a.second:hover {
position:relative;
overflow:visible;
}
.menu a.outer table.first a.second:hover table {
position:absolute;
top:-2px;
left:102px;
border-collapse:collapse;
background:#eee;
border:1px solid #000;
font-weight:normal
}
</style>
<![endif]-->

</head>

<body>

<div class="menu">
<a class="outer" href="../menu/index.html">DEMOS
<table class="first"><tr><td>
<a class="inner" href="../menu/zero_dollars.html" title="The zero dollar ads page">zero dollars</a>
<a class="inner" href="../menu/embed.html" title="Wrapping text around images">wrapping text</a>
<a class="inner" href="../menu/form.html" title="Styling forms">styled form</a>
<a class="inner" href="../menu/nodots.html" title="Removing active/focus borders">active focus</a>
<a class="inner second" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">HOVER/CLICK >
<table><tr><td>
<a class="inner" href="../menu/form.html" title="Styling forms">styled form</a>
<a class="inner" href="../menu/nodots.html" title="Removing active/focus borders">active focus</a>
<a class="inner" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">hover/click</a>
</td></tr></table>
</a>
<a class="inner" href="../menu/shadow_boxing.html" title="Multi-position drop shadow">shadow boxing</a>
<a class="inner" href="../menu/old_master.html" title="Image Map for detailed information">image map</a>
<a class="inner" href="../menu/bodies.html" title="fun with background images">fun backgrounds</a>
<a class="inner" href="../menu/fade_scroll.html" title="fade-out scrolling">fade scrolling</a>
<a class="inner" href="../menu/em_images.html" title="em size images compared">em sized images</a>
</td></tr></table>
</a>

<a class="outer" href="index.html">MENUS
<table class="first"><tr><td>
<a class="inner" href="spies.html" title="a coded list of spies">spies menu</a>
<a class="inner" href="vertical.html" title="a horizontal vertical menu">vertical menu</a>
<a class="inner" href="expand.html" title="an enlarging unordered list">enlarging list</a>
<a class="inner" href="enlarge.html" title="an unordered list with link images">link images</a>
<a class="inner" href="cross.html" title="non-rectangular links">non-rectangular</a>
<a class="inner" href="jigsaw.html" title="jigsaw links">jigsaw links</a>
<a class="inner" href="circles.html" title="circular links">circular links</a>
</td></tr></table>
</a>

<a class="outer" href="../layouts/index.html">LAYOUTS
<table class="first"><tr><td>
<a class="inner" href="../layouts/bodyfix.html" title="Cross browser fixed layout">Fixed 1</a>
<a class="inner" href="../layouts/body2.html" title="Cross browser fixed layout">Fixed 2</a>
<a class="inner" href="../layouts/body4.html" title="Cross browser fixed layout">Fixed 3</a>
<a class="inner" href="../layouts/body5.html" title="Cross browser fixed layout">Fixed 4</a>
<a class="inner" href="../layouts/minimum.html" title="A simple minimum width layout">minimum width</a>
</td></tr></table>
</a>

<a class="outer" href="../boxes/index.html">BOXES
<table class="first"><tr><td>
<a class="inner" href="../boxes/scrollbars.html" title="Left scroll bars">left scroll</a>
<a class="inner" href="../boxes/floatfix.html" title="IE6 3px float fix">IE6 3px fix</a>
<a class="inner" href="../boxes/snazzy.html" title="Snazzy borders">snazzy borders</a>
<a class="inner" href="../boxes/krazy.html" title="Krazy Korners">krazy korners</a>
<a class="inner" href="../boxes/outside.html" title="Percentage PLUS pixels">% PLUS pixels</a>
<a class="inner" href="../boxes/minwidth.html" title="min-width for IE">IE min-width</a>
<a class="inner" href="../boxes/minheight.html" title="min-height for IE">IE min-height</a>
</td></tr></table>
</a>

<a class="outer" href="../mozilla/index.html">MOZILLA
<table class="first"><tr><td>
<a class="inner" href="../mozilla/dropdown.html" title="A drop down menu">drop down menu</a>
<a class="inner" href="../mozilla/cascade.html" title="A cascading menu">cascading menu</a>
<a class="inner" href="../mozilla/content.html" title="Using contentquot;>contentlt;/a>
<a class="inner" href="../mozilla/moxbox.html" title=":hover applied to a div">mozzie box</a>
<a class="inner" href="../mozilla/rainbow.html" title="I can build a rainbow">rainbow box</a>
<a class="inner" href="../mozilla/snooker.html" title="Snooker cue">snooker cue</a>
<a class="inner" href="../mozilla/target.html" title="Target Practise">target practise</a>
<a class="inner" href="../mozilla/splittext.html" title="Two tone headings">two tone headings</a>
<a class="inner" href="../mozilla/shadow_text.html" title="Shadow text">shadow text</a>
</td></tr></table>
</a>

<a class="outer" href="../ie/index.html">EXPLORER
<table class="first"><tr><td>
<a class="inner" href="../ie/exampleone.html" title="Example one">example one</a>
<a class="inner" href="../ie/weft.html" title="Weft fonts">weft fonts</a>
<a class="inner" href="../ie/exampletwo.html" title="Vertical align">vertical align</a>
</td></tr></table>
</a>

<a class="outer" href="../opacty/index.html">OPACITY
<table class="first"><tr><td>
<a class="inner" href="../opacty/colours.html" title="colour wheel">opaque colours</a>
<a class="inner" href="../opacty/picturemenu.html" title="a menu using opacity">opaque menu</a>
<a class="inner" href="../opacty/png.html" title="partial opacity">partial opacity</a>
<a class="inner" href="../opacty/png2.html" title="partial opacity II">partial opacity II</a>
</td></tr></table>
</a>

</div>

<div id="noniemenu">
<div class="holder">
<ul>
<li><a class="outer" href="../menu/index.html">DEMOS</a></li>
<li><a class="inner" href="../menu/zero_dollars.html" title="The zero dollar ads page">zero dollars</a></li>
<li><a class="inner" href="../menu/embed.html" title="Wrapping text around images">wrapping text</a></li>
<li><a class="inner" href="../menu/form.html" title="Styling forms">styled form</a></li>
<li><a class="inner" href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
<li><a class="inner second" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">HOVER/CLICK ></a>
<ul id="a3">
<li><a class="inner" href="../menu/form.html" title="Styling forms">styled form</a></li>
<li><a class="inner" href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
<li><a class="inner" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">hover/click</a></li>
</ul>
</li>
<li><a class="inner" href="../menu/shadow_boxing.html" title="Multi-position drop shadow">shadow boxing</a></li>
<li><a class="inner" href="../menu/old_master.html" title="Image Map for detailed information">image map</a></li>
<li><a class="inner" href="../menu/bodies.html" title="fun with background images">fun backgrounds</a></li>
<li><a class="inner" href="../menu/fade_scroll.html" title="fade-out scrolling">fade scrolling</a></li>
<li><a class="inner" href="../menu/em_images.html" title="em size images compared">em sized images</a></li>
</ul>
</div>

<div class="holder">
<ul>
<li><a class="outer" href="index.html">MENUS</a></li>
<li><a class="inner" href="spies.html" title="a coded list of spies">spies menu</a></li>
<li><a class="inner" href="vertical.html" title="a horizontal vertical menu">vertical menu</a></li>
<li><a class="inner" href="expand.html" title="an enlarging unordered list">enlarging list</a></li>
<li><a class="inner" href="enlarge.html" title="an unordered list with link images">link images</a></li>
<li><a class="inner" href="cross.html" title="non-rectangular links">non-rectangular</a></li>
<li><a class="inner" href="jigsaw.html" title="jigsaw links">jigsaw links</a></li>
<li><a class="inner" href="circles.html" title="circular links">circular links</a></li>
</ul>
</div>

<div class="holder">
<ul>
<li><a class="outer" href="../layouts/index.html">LAYOUTS</a></li>
<li><a class="inner" href="../layouts/bodyfix.html" title="Cross browser fixed layout">Fixed 1</a></li>
<li><a class="inner" href="../layouts/body2.html" title="Cross browser fixed layout">Fixed 2</a></li>
<li><a class="inner" href="../layouts/body4.html" title="Cross browser fixed layout">Fixed 3</a></li>
<li><a class="inner" href="../layouts/body5.html" title="Cross browser fixed layout">Fixed 4</a></li>
<li><a class="inner" href="../layouts/minimum.html" title="A simple minimum width layout">minimum width</a></li>
</ul>
</div>

<div class="holder">
<ul>
<li><a class="outer" href="../boxes/index.html">BOXES</a></li>
<li><a class="inner" href="../boxes/scrollbars.html" title="Left scroll bars">left scroll</a></li>
<li><a class="inner" href="../boxes/floatfix.html" title="IE6 3px float fix">IE6 3px fix</a></li>
<li><a class="inner" href="../boxes/snazzy.html" title="Snazzy borders">snazzy borders</a></li>
<li><a class="inner" href="../boxes/krazy.html" title="Krazy Korners">krazy korners</a></li>
<li><a class="inner" href="../boxes/outside.html" title="Percentage PLUS pixels">% PLUS pixels</a></li>
<li><a class="inner" href="../boxes/minwidth.html" title="min-width for IE">IE min-width</a></li>
<li><a class="inner" href="../boxes/minheight.html" title="min-height for IE">IE min-height</a></li>
</ul>
</div>

<div class="holder">
<ul>
<li><a class="outer" href="../mozilla/index.html">MOZILLA</a></li>
<li><a class="inner" href="../mozilla/dropdown.html" title="A drop down menu">drop down menu</a></li>
<li><a class="inner" href="../mozilla/cascade.html" title="A cascading menu">cascading menu</a></li>
<li><a class="inner" href="../mozilla/content.html" title="Using contentquot;>contentlt;/a></li>
<li><a class="inner" href="../mozilla/moxbox.html" title=":hover applied to a div">mozzie box</a></li>
<li><a class="inner" href="../mozilla/rainbow.html" title="I can build a rainbow">rainbow box</a></li>
<li><a class="inner" href="../mozilla/snooker.html" title="Snooker cue">snooker cue</a></li>
<li><a class="inner" href="../mozilla/target.html" title="Target Practise">target practise</a></li>
<li><a class="inner" href="../mozilla/splittext.html" title="Two tone headings">two tone headings</a></li>
<li><a class="inner" href="../mozilla/shadow_text.html" title="Shadow text">shadow text</a></li>
</ul>
</div>

<div class="holder">
<ul>
<li><a class="outer" href="../ie/index.html">EXPLORER</a></li>
<li><a class="inner" href="../ie/exampleone.html" title="Example one">example one</a></li>
<li><a class="inner" href="../ie/weft.html" title="Weft fonts">weft fonts</a></li>
<li><a class="inner" href="../ie/exampletwo.html" title="Vertical align">vertical align</a></li>
</ul>
</div>

<div class="holder">
<ul>
<li><a class="outer" href="../opacty/index.html">OPACITY</a></li>
<li><a class="inner" href="../opacty/colours.html" title="colour wheel">opaque colours</a></li>
<li><a class="inner" href="../opacty/picturemenu.html" title="a menu using opacity">opaque menu</a></li>
<li><a class="inner" href="../opacty/png.html" title="partial opacity">partial opacity</a></li>
<li><a class="inner" href="../opacty/png2.html" title="partial opacity II">partial opacity II</a></li>
</ul>
</div>
</div>

</div>
</div>

<h1>NO JAVASCRIPT</h1>
<h1>JUST CSS!!!</h1>
<h1 class="red">NOW WITH CASCADE</h1>

</div>
</div>
</body>
</html>

posted @ 2008-04-30 19:06 CSST SOFT STUDIO LOG 阅读(48) | 评论 (0) | 编辑

串口操作类

摘要: usingSystem;usingSystem.IO.Ports;usingSystem.Threading;namespaceTripodDemo{publicclassSerialTripo:IDisposable{privateobjectobjComm=newobject();privateSerialPortcom;privatebooldisposed=false;SerialPort... 阅读全文

posted @ 2008-04-19 20:00 CSST SOFT STUDIO LOG 阅读(26) | 评论 (0) | 编辑

面试常用代码

最好背下来
1.取配置节数据库连接信息

string connstring = string.Empty;

ConnectionStringSettings settings = ConfigurationManager.ConnectionStrings["DataBaseConnection"];

if (settings != null)

{

connstring = settings.ConnectionString;

}

2 .操作数据库

public DataSet ExecuteDataSet(string sql, string connectionString)

{

using (SqlConnection connection = new SqlConnection(connectionString))

{

DataSet ds = new DataSet();

SqlDataAdapter da = new SqlDataAdapter(sql, connectionString);

da.Fill(ds);

return ds;

}

public int ExecuteNonQuery(string sql, string connectionString)

{

using (SqlConnection connection = new SqlConnection(connectionString))

{

connection.Open();

SqlCommand cmd = new SqlCommand(sql, connection);

return cmd.ExecuteNonQuery();

}

public object ExecuteScalar(string sql, string connectionString)

{

using (SqlConnection connection = new SqlConnection(connectionString))

{

connection.Open();

SqlCommand cmd = new SqlCommand(sql, connection);

return cmd.ExecuteScalar();

}

3.修改配置信息

public void SaveConfig(string key, string value)

{

try

{

string fileName = "Web.Config";

XmlDocument document = new XmlDocument();

document.Load(fileName);

((XmlElement)document.SelectSingleNode(@"//AppSetting/add[@key='" + key + "']")).SetAttribute("Value", value);

document.Save(fileName);

}

catch (Exception ex)

{

throw new Exception(ex.Message);

}

注意,使用了XPATH查询相关结点

posted @ 2008-03-28 11:38 CSST SOFT STUDIO LOG 阅读(59) | 评论 (2) | 编辑

Sql Server Express 2005无法使用SA用户登陆解决

在安装VS2008/2005(我机器上安装的VS2008)时会默认把SQL SERVER Express 2005安装上,默认安装时并没有打开远程连接及SA用户登陆功能

1.无法使用SA用户登陆解决方案
解决方法如下,打Microsoft Sql Server Management Studio Express,以windows验证方式登陆,打开服务器属性窗口(在数据库服务器图标上点右键选"属性"),选择"安全性"选项,界面如下所示

服务器验证方式选择SQL SERVERTT和windows验证方式,确认

然后再到"安全性-登陆名"处设置SA用户属性,界面如下

设置密码

启用SA用户

2.无法在其他机器连接SQL 2005 EXPRESS解决方案

在SQL SERVER菜单组中找到SQL Server Surface Area Configuration程序
点击"Surface Area Configuration For Service And Connection",启用"local and remote connections"

重启SQL服务
3.无法新建登陆用户,错误如下所示

还不知怎么处理,敬请高手解答

posted @ 2008-03-10 20:30 CSST SOFT STUDIO LOG 阅读(646) | 评论 (3) | 编辑

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