zoukankan      html  css  js  c++  java
  • 50个js技巧(分享)

    1.文本框焦点问题

    onBlur:当失去输入焦点后产生该事件

    onFocus:当输入获得焦点后,产生该文件

    Onchange:当文字值改变时,产生该事件

    Onselect:当文字加亮后,产生该文件

    <input type="text" value="mm" onfocus="if(value=='mm) {value=''}" onblur="if(value=='') {value='mm'}">

    点击时文字消失,失去焦点时文字再出现

    2.网页按钮的特殊颜色

    <inputtype=buttonname="Submit1" value="郭强" size=10class=s02style="background-color:rgb(235,207,22)">

    3.鼠标移入移出时颜色变化

    <inputtype="submit" value="找吧"  name="B1" onMouseOut=this.style.color="blue"onMouseOver=this.style.color="red"class="button">

    4.平面按钮

    <inputtype=submitvalue=订阅 style="border:1px solid :#666666; height:17px; 25pt; font-size:9pt;BACKGROUND-COLOR: #E8E8FF; color:#666666" name="submit">

    5.按钮颜色变化

    <inputtype=text name="nick" style="border:1px solid #666666; font-size:9pt; height:17px;BACKGROUND-COLOR: #F4F4FF; color:#ff6600" size="15" maxlength="16">

    6.平面输入框

    <inputtype="text" name="T1" size="20" style="border-style: solid; border- 1">

    7.使窗口变成指定的大小

    <script>window.resizeTo(300,283);</script>

    8.使文字上下滚动

    <marqueedirection=upscrollamount=1scrolldelay=100onmouseover='this.stop()'onmouseout='this.start()'height=60>

    <!-- head_scrolltext -->

    <tr>

    <td>共和国

    </table><!-- end head_scrolltext-->

    </marquee>

    9.状态栏显示该页状态

    <baseonmouseover="window.status='网站建设 http://www.webmake.cn/' ;return true">

    10.可以点击文字实现radio选项的选定

    <br>

    &nbsp;&nbsp;&nbsp;&nbsp;

    <inputtype="radio" name="regtype" value="A03" id="A03"><labelfor="A03">  情侣 : 一次注册两个帐户</label><br>

    11.可以在文字域的font写onclick事件

    12.打印</a>打印网页

    <a href='javascript:window.print()'>

    13.线型输入框

    <inputtype="text" name="key" size="12" value="关键字" onFocus=this.select()onMouseOver=this.focus()class="line">

    14.显示文档最后修改日期

    <scriptlanguage=javascript>function hi(str){ document.write(document.lastModified) alert("hi"+str+"!")}</script>

    15.可以在鼠标移到文字上时就触发事件

    <html>

    <head>

    <scriptlanguage="LiveScript">

    <!-- Hiding function hello() { alert("哈罗!"); }

    </script>

    </head>

    <body>

    <ahref="" onMouseOver="hello()">link</a>

    </body>

    </html>

    16.可以根据网页上的选项来确定页面颜色

    <HTML>

    <HEAD>

    <TITLE>background.html</TITLE>

    </HEAD>

    <SCRIPT>

    <!--function bgChange(selObj) {

     newColor = selObj.options[selObj.selectedIndex].text; document.bgColor= newColor; selObj.selectedIndex=-1;

     }//-->

    </SCRIPT>

    <BODYSTYLE="font-family:Arial">

    <B>Changing Background Colors</B>

    <BR>

    <FORM>

    <SELECT SIZE="8" onChange="bgChange(this);">

    <OPTION>Red<OPTION>

    <OPTION>Yellow<OPTION>

    <OPTION>Blue<OPTION>

    <OPTION>Violet<OPTION>

    <OPTION>pink<OPTION>

    </SELECT>

    </FORM>

    </BODY>

    </HTML>

    17.将按钮的特征改变

    <styletype="text/css">

    <!--.style1{

    font-size: 12px; background: #CCCCFF; border-width: thin thin thin thin; border-color: #CCCCFF#CCCCCC #CCCCCC #CCCCFF

    }

    .style2{

    font-size: 12px; font-weight: bold; background: #CCFFCC; border-width: thin medium medium thin;border-color: #CCFF99 #999999 #999999 #CCFF99

    }--></style>  

    本例按钮的代码如下:

    <inputtype="submit" name="Submit" value="提 交" onmouseover="this.className='style2'"onmouseout="this.className='style1'" class="style1">

    18.改变按钮的图片.

    <styletype="text/css">

    <!--.style3{

     font-size: 12px; background: url(image/buttonbg1.gif); border: 0px; width: 60px; height: 22px

    }

    .style4{

     font-size: 12px; font-weight: bold; background: url(image/buttonbg2.gif); border: 0px 0; width:60px; height: 22px

    }-->

    </style>  

    本例的按钮代码如下:

    <inputtype="submit" name="Submit2" value="提 交" onmouseover="this.className='style4'"onmouseout="this.className='style3'" class="style3">

    19.打印页面<divalign="center"><aclass=contenthref="javascript:doPrint();">打印本稿</a></div>

    20.可以直接写html语言document.write("");

    21.改变下拉框的颜色

    <selectname="classid"onChange="changelocation(document.myform.classid.options[document.myform.classid.selectedIndex].value)"size="1" style="color:#008080;font-size: 9pt">

    22.转至目标URL

    window.location=http://guoguo

    23.传递该object的formUpdateSN('guoqiang99267',this.form)function UpdateSN(strValue,strForm){ strForm.SignInName.value = strValue; return false;}

    24.文字标签

    <labelfor="AltName4">

    <inputname="AltName" type="RADIO" tabindex="931" id="AltName4">guoqiang99859

    </label>

    25.layer2为组件的ID,可以控制组件是否可见

    document.all.item('Layer2').style.display = "block";document.all.item('Layer2').style.display = "none";//

    26.将页面加入favorite中

    <scriptlanguage=javascript>

    <!--function Addme(){

    url ="http://your.site.address";//你自己的主页地址title="Your Site Name";//你自己的主页名称window.external.AddFavorite(url,title);-->

    </script>//

    27.过10秒自动关闭页面

    < scriptlanguage="JavaScript">function closeit() {

    setTimeout("self.close()",10000)

    }

    < /script>

    28.可以比较字符的大小

    char=post.charAt(i);if(!('0'<=char&&char<='9'))

    29.将字符转化为数字month = parseInt(char)

    30.点击value非空的选项时转向指定连接

    <select onchange='if(this.value!="")window.open(this.value)'class="textinput">

    <option selected>主办单位</option>

    <option>-----------------</option>

    <option value="http://www.bjd.com.cn/">北京日报</option>

    <option value="http://www.ben.com.cn/">北京晚报</option>

    </select>

    31.改变背景颜色

    <tdwidth=* class=dp bgColor=#FAFBFConmouseover="this.bgColor='#FFFFFF';"onmouseout="this.bgColor='#FAFBFC';">

    32.改变文字输入框的背景颜色

    <style>

    .input2{background-image: url('../images/inputbg.gif'); font-size: 12px; background-color:#D0DABB;border-top-width:1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px

    }

    </style>

    <inputname=contenttype=text size="47" class="input2" maxlength="50">

    33.改变水平线的特征

    <hrsize="0" noshade color="#C0C0C0">

    34.传递参数的方式

    <ahref="vote.asp?CurPage=8&id=3488">8</a>

    35.页内跳转

    <a href="#1">1</a>

    <ahref="#2">2</a>

    <ahref="#3">3</a>

    <ahref="#4">4</a>

    <ahref="#5">5</a>

    <ahref="#6">6</a>

    <ahref="#7">7</a>

    <aname="1">dfdf</a>

    <aname="2">dfdf</a>//

    36.两个按键一起按下

    if(event.ctrlKey && window.event.keyCode==13)//

    37.刷新页面

    javascript:this.location.reload()//

    38.将网页的按钮使能

    <SCRIPTLANGUAGE="JavaScript">

    function haha(){

    for(var i=0;i<document.form1.elements.length;i++) {

     if(document.form1.elements[i].name.indexOf("bb")!=-1)

    document.form1.elements[i].disabled=!document.form1.elements[i].disabled;

    }

    }

    </SCRIPT>

    <BODY>

    <formname=form1>

    <INPUTTYPE="button" NAME="aa " value=cindyonclick=haha()>

    <INPUTTYPE="button" NAME="bb " value=guoguo>

    <INPUTTYPE="button" NAME="bb " value=guoguo>

    39.文字移动

    <marqueescrollamount=3onmouseover=this.stop();onmouseout=this.start();>

    40.双击网页自动跑

    <SCRIPTLANGUAGE="JavaScript">

    var currentpos,timer;function initialize(){

     timer=setInterval("scrollwindow()",1);

    }

    function sc(){

    clearInterval(timer);

    }function scrollwindow(){

     currentpos=document.body.scrollTop; window.scroll(0,++currentpos);

    if (currentpos!= document.body.scrollTop) sc();

    }document.onmousedown=scdocument.ondblclick=initialize</SCRIPT>//

    41.后退<INPUTTYPE="button" onclick=window.history.back()value=back>

    42.前进<INPUTTYPE="button" onclick=window.history.forward()value=forward>

    43.刷新<INPUTTYPE="button" onclick=document.location.reload()value=reload>

    44.转向指定网页

    document.location="http://ww"或者document.location.assign(http://guoguo.com)

    45.在网页上显示实时时间

    <SCRIPTLANGUAGE="JavaScript">var clock_id;window.onload=function(){ clock_id=setInterval("document.form1.txtclock.value=(new Date);",1000)}</SCRIPT>//

    46.可以下载文件document.location.href="目标文件"//

    47.连接数据库

    import java.sql.*;String myDBDriver="sun.jdbc.odbc.JdbcOdbcDriver";Class.forName(myDBDriver);Connection conn=DriverManager.getConnection("jdbc:odbc:firm","username","password");Statement stmt=conn.createStatement();ResultSet rs=stmt.executeQuery(sql);rs.getString("column1");//

    48.可以直接在页面“div”内写下所需内容

    <INPUTTYPE="button" onclick="a1.innerHTML='<font color=red>*</font>'"><divid=a1></div>//

    49.可以改变页面上的连接的格式,使其为双线<style>

    A:link {text-decoration: none; color:#0000FF; font-family: 宋体}

    A:visited {text-decoration: none; color: #0000FF; font-family:  宋体}

    A:hover {text-decoration: underline overline; color: FF0000}

    </style>

    <style>

    A:link {text-decoration: none; color:#0000FF; font-family: 宋体}

    A:visited {text-decoration: none; color: #0000FF; font-family:  宋体}

    A:hover {text-decoration: underline overline line-through; color: FF0000}

    TH{FONT-SIZE: 9pt}TD{FONT-SIZE: 9pt}

    body {SCROLLBAR-FACE-COLOR:#A9D46D;

    SCROLLBAR-HIGHLIGHT-COLOR: #e7e7e7;

    SCROLLBAR-SHADOW-COLOR:#e7e7e7;

    SCROLLBAR-3DLIGHT-COLOR: #000000;

    LINE-HEIGHT: 15pt;

     SCROLLBAR-ARROW-COLOR: #ffffff;

    SCROLLBAR-TRACK-COLOR: #e7e7e7;

    }

    INPUT{

    BORDER-TOP-WIDTH: 1px;

     PADDING-RIGHT: 1px;

     PADDING-LEFT: 1px;

    BORDER-LEFT-WIDTH: 1px;

     FONT-SIZE:9pt;

    BORDER-LEFT-COLOR: #cccccc;

    BORDER-BOTTOM-WIDTH: 1px;

    BORDER-BOTTOM-COLOR: #cccccc;

     PADDING-BOTTOM: 1px;

    BORDER-TOP-COLOR: #cccccc;

    PADDING-TOP: 1px; HEIGHT: 18px;

    BORDER-RIGHT-WIDTH: 1px;

    BORDER-RIGHT-COLOR: #cccccc

    }

    DIV,form ,OPTION,P,TD,BR{

    FONT-FAMILY: 宋体;  FONT-SIZE: 9pt

    }

    textarea, select{

    border-width: 1;

    border-color: #000000;

     background-color: #efefef;

     font-family: 宋体;font-size: 9pt;

    font-style: bold;

    }

    .text{ font-family: "宋体";

    font-size: 9pt;

     color: #003300;

    border: #006600 solid;

    border-width: 1px 1px1px 1px

    }

    </style>

    完整的css

    50.新建frame<ahref="javascript:newframe('http://www.163.net/help/a_little/index.html','http://www.163.net/help/a_little/a_13.html')"><imgalt=帮助 border=0 src="http://bjpic.163.net/images/mail/button-help.gif"></a>

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  • 原文地址:https://www.cnblogs.com/lijun2013/p/3781867.html
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