JavaScriptʵ¼ÊÓ¦Ó㺶ԲãµÄ¿ØÖÆ
²ãµÄ¿ª·¢ÔÚʵ¼ÊÓ¦ÓÃÖбȽÏÖØÒª£¬±ÈÈçÆ¯¸¡¹ã¸æµÈµÈ£¬ÎÒÕâÀï¼òµ¥Ì½ÌÖһϡ£
1. ¿ØÖƲãµÄÏÔʾ»òÒþ²Ø
Á½ÖÖ°ì·¨£¬Æäʵ¶¼ÊÇ¿ØÖÆÑùʽµÄ¡£
°ì·¨Ò»£º¿ØÖÆ display ÊôÐÔ
<script language="javascript">
function show(status)
{
document.getElementById("div1").style.display = status;
}
</script>
<div id="div1" style="left:10px;top:200px;width:250;height:100;z-index:2;">
ÕâÊÇÒ»²ã,ÄÜ¿´¼ûÂð,ºÇºÇ.
</div>
<a href=# onClick="show('block');">ÏÔʾ</a>
<a href=# onClick="show('none')">¹Ø±Õ</a>
°ì·¨¶þ ¿ØÖÆ visibility ÊôÐÔ
<script language="javascript">
function show(status)
{
document.getElementById("div1").style.visibility = status;
}
<div id="div1" style="left:10px;top:200px;width:250;height:100;z-index:2;visibility=hideen;">
ÕâÊÇÒ»²ã,ÄÜ¿´¼ûÂð,ºÇºÇ.
</div>
<a href=# onClick="show('visible);">ÏÔʾ</a>
<a href=# onClick="show('hidden')">¹Ø±Õ</a>
Èç¹ûÒª¿ØÖƲ㶨ʱ¹Ø±ÕµÄ»°£¬¿ÉÒÔ¼ÓÉÏ£º
function setTimeStart()
10 {
11 window.setTimeout(hiddenTips,4000);
12 }^
</script>
ÉÏÃæ´úÂë¾ÍÊÇÀûÓÃsetTimeout·½·¨À´¿ØÖÆ4Ãëºó¹Ø±Õ²ã¡£
2. ¿ØÖƲãµÄÔ˶¯£¬ÀàËÆÓÚ¸¡¶¯¹ã¸æ
Ö÷Òª¾ÍÊÇͨ¹ý¿ØÖƲãÑùʽÖеÄtopºÍleftÊôÐÔµÄÖµÀ´Ô˶¯£¬Í¨¹ýËæ»úÉú³É²»Í¬µÄÖµ£¬¿´ÆðÀ´¾ÍÏóÔÚÔ˶¯Ò»Ñù¡£
<script language="javascript">
var a=200, b=100;
var c=0.1;
var d=5;
var t=0;
function float_1()
{
var random1 = 100*Math.random();
var random2 = 100*Math.random();
var float_1 = document.all ? document.all.float_1.style : document.float_1;
float_1.left = Math.round(a*Math.cos(t)*Math.cos(t/d)+a)+random1;
float_1.top = Math.round(b*Math.sin(t)+b)
Ïà¹ØÎĵµ£º
ÔÚjsÖУ¬Ã¿¸ö¶ÔÏó¶¼ÓÐÒ»¸öprototypeÊôÐÔ£º·µ»Ø¶ÔÏóÀàÐÍÔÐ͵ÄÒýÓ᣺ÜÞÖ¿Ú£¡Ï°Óï“ÒÀºù«»Æ°”£¬ÕâÀïµÄºù«¾ÍÊÇÔÐÍ£¬ÄÇô“ư.prototype” ·µ»ØµÄ¾ÍÊǺù«£¬»òÕߓư.prototype= new ºù«()”¡£
prototypeµÄÓÃ;£º
¼Ì³Ð
ÓÐÒ»¸ö¶ÔÏó££×ÓÀࣺ
function ×ÓÀà() {
this.lastname = ......
·µ»Ø JavaScript È«¾Ö¶ÔÏó²Î¿¼ÊÖ²á
¶¨ÒåºÍÓ÷¨
isNaN() º¯ÊýÓÃÓÚ¼ì²éÆä²ÎÊýÊÇ·ñÊÇ·ÇÊý×ÖÖµ¡£
Óï·¨
isNaN(x)
²ÎÊýÃèÊö
x
±ØÐè¡£Òª¼ì²âµÄÖµ¡£
·µ»ØÖµ
Èç¹û x ÊÇÌØÊâµÄ·ÇÊý×ÖÖµ NaN£¨»òÕßÄܱ»×ª»»ÎªÕâÑùµÄÖµ£©£¬·µ»ØµÄÖµ¾ÍÊÇ true¡£Èç¹û x ÊÇÆäËûÖµ,Ôò·µ»Ø false¡£
˵Ã÷
isNaN() º¯Êý¿ÉÓÃÓÚÅÐ¶ÏÆä²ÎÊýÊÇ·ñÊÇ NaN£ ......
¶þ¡¢¶¯Ì¬¸ø±í²åÈëÐУº
function addRow(){
//¶¯Ì¬²åÈëÒ»ÐÐ
var oRow1=mediaMes.insertRow(mediaMes.rows.length);
//ÉèÖÃtrµÄid
oRow1.id="tr"+thisId;
//»ñµÃ±í×ܵÄÐÐÊý
var aRows=mediaMes.rows;
//»ñµÃÐÂÌí¼ÓÐеÄÁм¯ºÏ
var aCells=oRow1. ......
ÕâÈý¸öÓïÑÔ·Ö±ðÊÇÈý¸ö¹«Ë¾¿ª·¢µÄ£¬SUNµÄJava£¬NetscapeµÄJavaScript£¬MicrosoftµÄJScript
JavaScriptÊÇÓÉNetscape¹«Ë¾¿ª·¢²¢ËæNavigatorµ¼º½ÕßÒ»Æð·¢²¼µÄ¡¢½éÓÚJavaÓëHTMLÖ®¼ä¡¢»ùÓÚ¶ÔÏóʼþÇý¶¯µÄ±à³ÌÓïÑÔ£¬²»ÐèÒªJava±àÒëÆ÷£¬¶øÊÇÖ±½ÓÔËÐÐÔÚWebä¯ÀÀÆ÷ÖУ¬ËüµÄǰÉíÊÇLive Script¡£
JScriptÊÇÒ»ÖÖÀàËÆJavaScriptµÄÓïÑÔ¡ ......
1.Ajax Rain
¡¡¡¡AjaxRainÓкܶàÍêÃÀÕûºÏAJAX, CSS, DHTML »ò JavascriptµÄʵÀý£¬ÓÐһЩDemoµÄÈ·ÖµµÃÄãÈ¥¿´Ò»¿´£¬¼´Ê¹Äã²»ÊÇÍøÒ³Éè¼Æ(¿ª·¢)ʦ¡£
Ajax/JavascriptʵÀý:
EXT JS Date Picker
jQuery Feed Menu
jGrowl
FastFind Menu – Jquery
Spiffy Accordion
2.Ajax Daddy ......