Javascript»ñÈ¡¸÷ÖÖä¯ÀÀÆ÷¿É¼û´°¿Ú´óС
¸ãÁË´ó°ëÌ죬×ÜËãŪÃ÷°×ÁËΪºÎÓÃdocument.body.clientHeight£¬document.body.offsetHeight¶¼Ã»Óаì
·¨»ñÈ¡ÍøÒ³¿É¼ûÇøÓòµÄÕýÈ·Öµ£¬ÔÀ´×ï¿ý»öÊ×ÊÇW3C¶¨ÒåµÄ±ê×¼£¡£¡ÔÚж¨Òå³öÀ´µÄ±ê×¼ÏÂ
document.documentElement.clientHeightÔÚIEºÍ»ðºüÀï¶¼ÄÜ»ñÈ¡ÕýÈ·Öµ£¬ÏÂÃæÒ»ÆªÎÄÕÂÏêϸ½éÉÜÁË»ñÈ¡¸÷ÖÖä¯ÀÀÆ÷¿É¼û
´°¿Ú´óСÕâ·½ÃæµÄ²î±ð£º
<scrīpt>
function getInfo()
{
var s = "";
s += " ÍøÒ³¿É¼ûÇøÓò¿í£º"+ document.body.clientWidth;
s += " ÍøÒ³¿É¼ûÇøÓò¸ß£º"+ document.body.clientHeight;
s += " ÍøÒ³¿É¼ûÇøÓò¿í£º"+ document.body.offsetWidth + " (°üÀ¨±ßÏߺ͹ö¶¯ÌõµÄ¿í)";
s += " ÍøÒ³¿É¼ûÇøÓò¸ß£º"+ document.body.offsetHeight + " (°üÀ¨±ßÏߵĿí)";
s += " ÍøÒ³ÕýÎÄÈ«ÎÄ¿í£º"+ document.body.scrollWidth;
s += " ÍøÒ³ÕýÎÄÈ«Îĸߣº"+ document.body.scrollHeight;
s += " ÍøÒ³±»¾íÈ¥µÄ¸ß(ff)£º"+ document.body.scrollTop;
s += " ÍøÒ³±»¾íÈ¥µÄ¸ß(ie)£º"+ document.documentElement.scrollTop;
s += " ÍøÒ³±»¾íÈ¥µÄ×ó£º"+ document.body.scrollLeft;
s += " ÍøÒ³ÕýÎIJ¿·ÖÉÏ£º"+ window.screenTop;
s += " ÍøÒ³ÕýÎIJ¿·Ö×ó£º"+ window.screenLeft;
s += " ÆÁÄ»·Ö±æÂʵĸߣº"+ window.screen.height;
s += " ÆÁÄ»·Ö±æÂÊµÄ¿í£º"+ window.screen.width;
s += " ÆÁÄ»¿ÉÓù¤×÷
Çø¸ß¶È£º"+ window.screen.availHeight;
s += " ÆÁÄ»¿ÉÓù¤×÷Çø¿í¶È£º"+ window.screen.availWidth;
s += " ÄãµÄÆÁÄ»ÉèÖÃÊÇ "+ window.screen.colorDepth +" λ²ÊÉ«";
s += " ÄãµÄÆÁÄ»ÉèÖà "+ window.screen.deviceXDPI +" ÏñËØ/Ó¢´ç";
//alert (s);
}
getInfo();
</scrīpt>
ÔÚÎÒ±¾µØ²âÊÔµ±ÖУº
ÔÚ
Ïà¹ØÎĵµ£º
[ 2007-8-6 17:03:00 | By: ibrahim ]
javascript²Ù×÷Select±ê¼ÇÖÐoptions¼¯ºÏ
ÏÈÀ´¿´¿´options¼¯ºÏµÄÕ⼸¸ö·½·¨£º
options.add(option)·½·¨Ïò¼¯ºÏÀïÌí¼ÓÒ»Ïîoption¶ÔÏó£»
options.remove(index)·½·¨ÒƳýoptions¼¯ºÏÖеÄÖ¸¶¨Ï
options(index)»òoptions.item(index)¿ÉÒÔͨ¹ýË÷Òý»ñÈ¡options¼¯º ......
Èç¹ûÄãÏë½øÒ»²½Á˽âÈçºÎÓÃJavaScriptÀ´ÎªÍøÒ³Ìí¼Ó½»»¥ÐԵϰ£¬ÄãÒ²ÐíÒѾÌý¹ýJavaScriptµÄʼþ´úÀí£¨event delegation£©ÁË£¬²¢ÇÒ»á¾õµÃÖ»ÓÐÄÇЩţ±ÆºæºæµÄJavaScript³ÌÐòÔ±²Å»á¹ØÐÄÕâÑù¸´ÔÓµÄÉè¼ÆÄ£Ê½¡£ÊÂʵÉÏ£¬Èç¹ûÄãÒѾ֪µÀÔõôÑùÈ¥Ìí¼ÓJavaScriptµÄʼþ´¦ÀíÆ÷£¨event handler£©£¬ÊµÏÖʼþ´úÀíÒ²ÊǼþÇá¶øÒ×¾ÙµÄÊÂÇé¡£
J ......
Ò»¡¢ÉùÃ÷×Ö·û´®:
var normal_monkey = "I am a monkey!<br>";
document.writeln("Normal monkey " + normal_monkey);
var bold_monkey = normal_monkey.bold();
document.writeln("Bold monkey "&n ......
·½·¨Ò»:
¸öÈËÈÏΪ×îºÃµÄ·½·¨.²ÉÓõÄÊÇÕýÔò±í´ïʽ,ÕâÊÇ×îºËÐĵÄÔÀí.
Æä´Î.Õâ¸ö·½·¨Ê¹ÓÃÁËJavaScript µÄprototype ÊôÐÔ
ÆäʵÄ㲻ʹÓÃÕâ¸öÊôÐÔÒ»Ñù¿ÉÒÔÓú¯ÊýʵÏÖ.µ«ÕâÑù×öºóÓÃÆðÀ´±È½Ï·½±ã.
ÏÂÃæ¾ÍÀ´¿´¿´Õâ¸öÊôÐÔÊÇÔõôÀ´ÓõÄ.
·µ»Ø¶ÔÏóÀàÐÍÔÐ͵ÄÒýÓá£
objectName.prototype
objectName ²ÎÊýÊǶÔÏóµÄÃû³Æ¡£ ......
Èç¹ûÄãÍêÈ«²»¶®£¬ÄÇôÆÚÍû1-2ÖÜ¿´ÍêÒ»±éÀµ¹....²»Óÿ´µÄÌ«×Ðϸ£¬ºóÃæÔÙ¿´µ½²»¶®µÄʱºò»ØÍ·È¥¿´ÕâЩ¶«Î÷ºÃÁË¡£
1. ǰÑÔºÍ×¼±¸¹¤×÷
ÕâÀï²»»á½éÉÜʲôÈí¼þµÄÓ÷¨Ò»ÀàµÄ¶«Î÷¡£Èç¹û¾õµÃÊÖд´úÂëÊÇÔÚ×°µÄÈË¿ÉÒÔ³öÈ¥ÁË£¬Ð»Ð»¡£
Ê×ÏÈÄãÒªÓÐ̨µçÄÔ¡£È»ºóËüÓ¦¸Ã×°×Åwindows ºÍ IE¡£ÏÂÃæËù̸µ½µÄ´úÂë ......