javascriptÒ»¶Îʱ¼ä´úÂë
<SCRIPT language=javaScript>
<!--
now = new Date(),hour = now.getHours()
if(hour < 6){document.write("Á賿ºÃ!")}
else if (hour < 9){document.write("ÔçÉϺã¡")}
else if (hour < 12){document.write("ÉÏÎçºÃ£¡")}
else if (hour < 14){document.write("ÖÐÎçºÃ£¡")}
else if (hour < 17){document.write("ÏÂÎçºÃ£¡")}
else if (hour < 19){document.write("°øÍíºÃ£¡")}
else if (hour < 22){document.write("ÍíÉϺã¡")}
else {document.write("Ò¹ÀïºÃ!")}
// -->
</SCRIPT>
½ñÌìÊÇ
<SCRIPT language=JavaScript><!--
var dayNames = new Array("ÐÇÆÚÈÕ","ÐÇÆÚÒ»","ÐÇÆÚ¶þ","ÐÇÆÚÈý","ÐÇÆÚËÄ","ÐÇÆÚÎå","ÐÇÆÚÁù");
Stamp = new Date();
document.write("" + Stamp.getYear() + "Äê"+(Stamp.getMonth() + 1) +"ÔÂ"+Stamp.getDate()+ "ÈÕ"+ "");
//--></SCRIPT>
Ïà¹ØÎĵµ£º
1. oncontextmenu="window.event.returnValue=false" ½«³¹µ×ÆÁ±ÎÊó±êÓÒ¼ü
<table border oncontextmenu=return(false)><td>no</table> ¿ÉÓÃÓÚTable
2. <body onselectstart="return false"> È¡Ïûѡȡ¡¢·ÀÖ¹¸´ÖÆ
3. onpaste="return false" ²»×¼Õ³Ìù
4. oncopy="return false;" oncut="return f ......
¡¶Îò͸JavaScript¡·Ñ§Ï°±Ê¼Ç
ÔÎĵØÖ·£ºhttp://www.cnblogs.com/leadzen/archive/2008/02/25/1073404.html
ÕâÊÇÒ»±¾ºÜÐÎÏóÉú¶¯µÄÊ飬ʹÎÒÃÇ¿ÉÒÔ¸üÉîµØÁ˽âÁËJavaScript¡£
ÒýÑÔ
±à³ÌÊÀ½çÀïÖ»´æÔÚÁ½ÖÖ»ù±¾ÔªËØ£¬Ò»¸öÊÇÊý¾Ý£¬Ò»¸öÊÇ´úÂë¡£±à³ÌÊÀ½ç¾ÍÊÇÔÚÊý¾ÝºÍ´úÂëǧ˿ÍòÂÆµ ......
1. document.write( " "); Êä³öÓï¾ä
2.JSÖеÄ×¢ÊÍΪ//
3.´«Í³µÄHTMLÎĵµË³ÐòÊÇ:document- >html- >(head,body)
4.Ò»¸öä¯ÀÀÆ÷´°¿ÚÖеÄDOM˳ÐòÊÇ:window- >(navigator,screen,history,location,document)
5.µÃµ½±íµ¥ÖÐÔªËØµÄÃû³ÆºÍÖµ:document.getElementById( "±íµ¥ ......
Çó 555.555µÄËÄÉáÎåÈë±£ÁôÁ½Î»Ð¡Êý
ʹÓÃMath.round Ôõô¶¼Ëã²»¶Ô,½á¹û¶¼ÊÇ555.55 ,Ã²ËÆÊÇÒòΪjava¼ÆË㸡µãÊýʱ»áĪÃûÆäÃîÔÚ½áβ¸úÉÏÒ»´®Êý×Ö ±ÈÈç555.55500000003
ÎÞÄÎÖ»ÄÜдÕâ¸ö·½·¨
function round(a,b){
var s=a.toString().indexOf(".");
a0=a.toString().substr(0,s+b+1);
a1=Math.round(a.toString().sub ......
Definition and Usage
¶¨ÒåÓëÓ÷¨The constructor property is a reference to the function that created an object.
constructorÊôÐÔÊÇËù½¨Á¢¶ÔÏóµÄº¯Êý²Î¿¼Syntax
Óï·¨object.constructor
Example 1
¾ÙÀý
In this example we will show how to use the constructor property:
ÔÚÕâ¸ö¾ÙÀýÖÐÎÒÃǽ«Õ¹Ê¾ÈçºÎʹÓÃcons ......