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 ×îÐÂÎÄÕ : javascript

javascript ¸÷Öֵõ½ä¯ÀÀÆ÷¿í¶ÈºÍ¸ß¶ÈµÄº¯Êý

function getInfo()
{
    var s = "";
    s += " ÍøÒ³¿É¼ûÇøÓò¿í£º"+ document.body.clientWidth+"\n";
    s += " ÍøÒ³¿É¼ûÇøÓò¸ß£º"+ document.body.clientHeight+"\n";
    s += " ÍøÒ³¿É¼ûÇøÓò¿í£º"+ document.body.offsetWidth + " (°üÀ¨±ßÏߺ͹ö¶¯ÌõµÄ¿í)"+"\n";
    s += " ÍøÒ³¿É¼ûÇøÓò¸ß£º"+ document.body.offsetHeight + " (°üÀ¨±ßÏߵĿí)"+"\n";
    s += " ÍøÒ³ÕýÎÄÈ«ÎÄ¿í£º"+ document.body.scrollWidth+"\n";
    s += " ÍøÒ³ÕýÎÄÈ«Îĸߣº"+ document.body.scrollHeight+"\n";
    s += " ÍøÒ³±»¾íÈ¥µÄ¸ß(ff)£º"+ document.body.scrollTop+"\n";
    s += " ÍøÒ³±»¾íÈ¥µÄ¸ß(ie)£º"+ document.documentElement.scrollTop+"\n";   
    s += " ÍøÒ³±»¾íÈ¥µÄ×ó£ ......

JavaScript summary

1. ÍøÒ³Öв¶»ñJavaScript´íÎóµÄÁ½ÖÖ·½·¨£º
ʹÓà onerror ʼþÊÇÒ»ÖÖÀÏʽµÄ±ê×¼µÄÔÚÍøÒ³Öв¶»ñ Javascript ´íÎóµÄ·½·¨
throw ÉùÃ÷µÄ×÷ÓÃÊÇ´´½¨ exception£¨Òì³££©¡£Äã¿ÉÒÔ°ÑÕâ¸öÉùÃ÷Óë try...catch ÉùÃ÷ÅäºÏʹÓã¬ÒÔ´ïµ½¿ØÖƳÌÐòÁ÷²¢²úÉú¾«È·´íÎóÏûÏ¢µÄÄ¿µÄ¡£
2.Á½¸öJavaScriptÎļþ¼äº¯ÊýµÄµ÷ÓÃ
http://space.flash8.net/space/batch.viewlink.php?itemid=318459 ......

javascript´ó¼¯ºÏ

CSDNµÄBlog±È½ÏÇ¿º·£¬Ò»ÆªÎÄÕÂÄÜдÄÇô¶à£¬´ó¼ÒÈ¥³ö´¦¿´°É£¬ÄǶùºÃ¿´Ð©£ºhttp://blog.csdn.net/panxuan/archive/2007/11/26/1902826.aspx 
ʼþÔ´¶ÔÏó 
event.srcElement.tagName 
event.srcElement.type 
²¶»ñÊÍ·Å 
event.srcElement.setCapture();  
event.srcElement.releaseCapture();   
ʼþ°´¼ü 
event.keyCode 
event.shiftKey 
event.altKey 
event.ctrlKey 
ʼþ·µ»ØÖµ 
event.returnValue 
Êó±êλÖà
event.x 
event.y 
´°Ìå»î¶¯ÔªËØ 
document.activeElement 
°ó¶¨Ê¼þ 
document.captureEvents(Event.KEYDOWN); 
·ÃÎÊ´°ÌåÔªËØ 
document.all("txt").focus(); 
document.all("txt").select(); 
´°ÌåÃüÁî 
document.execCommand 
´°ÌåCOOKIE 
document.cookie 
²Ëµ¥Ê¼þ 
document.oncontextmenu 
´´½¨ÔªËØ 
document.createElement("SPAN");   
¸ù¾ÝÊó±ê»ñµÃÔªËØ£º 
document.elementfromPoint(event.x,event.y).tagName==" ......

ÍøÒ³ÖÆ×÷ǰ̨֮JavascriptÊó±êʼþ


    
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2. µÚÒ»¸öÀý×Ó
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2.1 ·½¿é
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<div style="width:140px; height:140px; background-color:orange; cursor:pointer;"></div>

²»ÒªËµ°³ÔÚ·óÑܰ¡£¬Íòʶ¼Óиö·Ç³£¼òµ¥µÄ¿ªÊ¼£¬¾ÍÏñ°³±»°³Ç°mmõßµôÒ»Ñù...
ps£º ϸÐĵÄÅóÓÑÒ²Ðí»á·¢ÏÖ°³µÄ cursor ÓõÄÊÇ pointer ¶ø²»ÊÇ hand£¬ÕâÊÇÒòΪhand ÊôÐÔ²»·ûºÏ±ê×¼¡£ËäÈ»°³Ö»ÎªIEд´úÂ룬µ«ÊDZ£³ÖºÃµÄϰ¹ßÊDZØÒªµÄ¡£ÒÔºó´ËÀàÎÊÌâ ......

¶àä¯ÀÀÆ÷¼æÈÝÐÔÎÊÌâ¼°½â¾ö·½°¸Ö®Javascriptƪ

 
ʱ¼ä: 2009-9-02 - ·ÖÀà: Html+CSS, JavaScript - ÆÀÂÛ: 0 - ÔĶÁ: 70 ´Î
CSS¸úJavaScript¿ª·¢ÖУ¬×îÁî´ó¼ÒÍ·ÌÛµÄÎÊÌâ¾ÍÊÇä¯ÀÀÆ÷¼æÈÝÐÔÁË£¬ËäÈ»ºÜ¶àÎÄÕÂÓÐÕâ·½ÃæµÄÎÄÕ£¬µ«ÒÀÈ»Èúܶ࿪·¢ÈËÔ±ÔÎͷתÏò£¬¶øÇÒÒ²²»¹»È«Ãæ¡£ÕâÆªÎÄÕ£¬½«È«ÃæÊÕ¼¯cssºÍjavascriptÔÚ¸÷ÖÖä¯ÀÀÆ÷ϵļæÈÝÐÔ±¨¸æ£¬Ò²ÆÚ´ý¸÷λ²»¶Ï²¹³ä¡£
ÓÉÓÚ·¢¾õÄÚÈÝÊÕ¼¯Ô½À´Ô½¶à£¬¾ö¶¨½«CSS¸úJavaScript·Ö¿ª¡£
Ò»¡¢document.formName.item(”itemName”) ÎÊÌâ
ÎÊÌâ˵Ã÷£ºIEÏ£¬¿ÉÒÔʹÓà document.formName.item(”itemName”) »ò document.formName.elements ["elementName"]£»Firefox Ï£¬Ö»ÄÜʹÓÃdocument.formName.elements["elementName"]¡£
½â¾ö·½·¨£ºÍ³Ò»Ê¹ÓÃdocument.formName.elements["elementName"]¡£
¶þ¡¢¼¯ºÏÀà¶ÔÏóÎÊÌâ
ÎÊÌâ˵Ã÷£ºIEÏ£¬¿ÉÒÔʹÓà () »ò [] »ñÈ¡¼¯ºÏÀà¶ÔÏó£»FirefoxÏ£¬Ö»ÄÜʹÓà [ ]»ñÈ¡¼¯ºÏÀà¶ÔÏó¡£
½â¾ö·½·¨£ºÍ³Ò»Ê¹Óà [] »ñÈ¡¼¯ºÏÀà¶ÔÏó¡£
Èý¡¢×Ô¶¨ÒåÊôÐÔÎÊÌâ
ÎÊÌâ˵Ã÷£ºIEÏ£¬¿ÉÒÔʹÓûñÈ¡³£¹æÊôÐԵķ½·¨À´»ñÈ¡×Ô¶¨ÒåÊôÐÔ£¬Ò²¿ÉÒÔʹÓà getAttribute() »ñÈ¡×Ô¶¨ÒåÊôÐÔ£»FirefoxÏ£¬Ö»ÄÜʹÓà getAttribute() »ñÈ¡×Ô¶¨ÒåÊôÐÔ¡£
½â¾ö·½·¨£ºÍ³Ò»Í¨ ......

javaScriptͨÓÃÊý¾ÝÀàÐÍУÑé

  /** 
* È¡µÃ×Ö·û´®µÄ×Ö½Ú³¤¶È 
*/ 
´úÂë
function strlen(str)
{
var i;
var len;

len = 0;
for (i=0;i<str.length;i++)
{
if (str.charCodeAt(i)>255) len+=2; else len++;
}
return len;
}


/* 
* ÅжÏÊÇ·ñΪÊý×Ö£¬ÊÇÔò·µ»Øtrue,·ñÔò·µ»Øfalse 
*/ 
´úÂë
function f_check_number(obj)
{
if (/^\d+$/.test(obj.value))
{
return true;
}
else
{
f_alert(obj,"ÇëÊäÈëÊý×Ö");
return false;
}
}


/* 
* ÅжÏÊÇ·ñΪ×ÔÈ»Êý£¬ÊÇÔò·µ»Øtrue,·ñÔò·µ»Øfalse 
*/ 
´úÂë
function f_check_naturalnumber(obj)
{
var s = obj.value;
if (/^[0-9]+$/.test( s ) && (s > 0))
{
return true;
}
else
{
f_alert(obj,"ÇëÊäÈë×ÔÈ»Êý");
ret ......
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