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 ×îÐÂÎÄÕ : javascript

JavaScript isPrototypeOfºÍhasOwnPropertyʹÓÃÇø±ð

1¡¢isPrototypeOf
isPrototypeOfÊÇÓÃÀ´ÅжÏÖ¸¶¨¶ÔÏóobject1ÊÇ·ñ´æÔÚÓÚÁíÒ»¸ö¶ÔÏóobject2µÄÔ­ÐÍÁ´ÖУ¬ÊÇÔò·µ»Øtrue£¬·ñÔò·µ»Øfalse¡£
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object1.isPrototypeOf(object2);
object1ÊÇÒ»¸ö¶ÔÏóµÄʵÀý£»
object2ÊÇÁíÒ»¸ö½«Òª¼ì²éÆäÔ­ÐÍÁ´µÄ¶ÔÏó¡£
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Èç¹û object2 µÄÔ­ÐÍÁ´Öаüº¬object1£¬ÄÇô isPrototypeOf ·½·¨·µ»Ø true¡£
Èç¹û object2 ²»ÊÇÒ»¸ö¶ÔÏó»òÕß object1 ûÓгöÏÖÔÚ object2 ÖеÄÔ­ÐÍÁ´ÖУ¬isPrototypeOf ·½·¨½«·µ»Ø false¡£
ʹÓþÙÀýÈçÏ£º
var re = /^\s*/;
// ÕâÀﶨÒåÒ»¸öÕýÔò±í´ïʽ¶ÔÏó
// ÕâÀï¼ì²éRegExpÊDz»ÊÇreµÄÔ­ÐÎÁ´¶ÔÏó,·µ»Øtrue
var bIsptt = RegExp.prototype.isPrototypeOf(re);
 
 2¡¢hasOwnProperty
hasOwnPropertyÅжÏÒ»¸ö¶ÔÏóÊÇ·ñÓÐÃû³ÆµÄÊôÐÔ»ò¶ÔÏ󣬴˷½·¨ÎÞ·¨¼ì²é¸Ã¶ÔÏóµÄÔ­ÐÍÁ´ÖÐÊÇ·ñ¾ßÓиÃÊôÐÔ£¬¸ÃÊôÐÔ±ØÐëÊǶÔÏó±¾ÉíµÄÒ»¸ö³ÉÔ±¡£
Èç¹û¸ÃÊôÐÔ»òÕß·½·¨ÊǸà ¶ÔÏó×ÔÉí¶¨ÒåµÄ¶ø²»ÊÇÆ÷Ô­ÐÍÁ´Öж¨ÒåµÄ Ôò·µ»Øtrue;·ñÔò·µ»Øfalse;
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object.hasOwnProperty(proName);
ÅжÏproNameµÄÃû³ÆÊDz»ÊÇobject¶ÔÏóµÄÒ»¸öÊôÐÔ»ò¶ÔÏó¡ ......

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javascriptº¯ÊýµÄ¶¨Òå
1£ºµ÷Óùؼü×ÖfunctionÀ´¹¹Ô죬È磺
    function distance(x1,x2,y1,y2)
    {
        var dx=x2-x1;
        var dy=y2-y1;
        return Math.sqrt(dx*dx+dy*dy);
    }
   
2£ºÊ¹ÓÃFunction()¹¹Ô캯Êý
    var f=new Function*"x","y","return x*y");
    ÕâÐдúÂë´´½¨ÁËÒ»¸öк¯Êý£¬¸Ãº¯ÊýºÍÄãËùÊìϤµÄÓï·¨¶¨ÒåµÄº¯Êý»ù±¾ÉÏʱµÈ¼ÛµÄ:
    function f(x,y)
    {
        return x*y;
    }
   
Functino()¹¹Ô캯Êý¿ÉÒÔ½ÓÊÜÈÎÒâ¶à¸ö×Ö·û´®²ÎÊý¡£ËüµÄ×îºóÒ»¸ö²ÎÊýʱº¯ÊýµÄÖ÷Ì壬ÆäÖпÉÒÔ°üº¬ÈκÎJavaScriptÓï¾ä£¬Óï¾äÖ®¼äÓ÷ֺŷÖ
¸ô¡£ÆäËûµÄ²ÎÊý¶¼ÊÇÓÃÀ´ËµÃ÷º¯ÊýÒª¶¨ÒåµÄÐÎʽ²ÎÊýÃûµÄ×Ö·û´®¡£Èç¹ûÄ㶨ÒåµÄº¯ÊýûÓвÎÊý£¬ÄÇô¿ÉÒÔÖ»Ðè¸ø¹¹Ô캯Êý´«µÝÒ»¸ö×Ö·û´®£¨¼´º¯ÊýµÄÖ÷Ì壩¼´¿É¡ ......

JavaScript¶¯Ì¬Ìí¼Ó|°ó¶¨Ê¼þ

1£¬²»´ø²ÎÊýµÄʼþ£º
Á½ÖÖ·½Ê½£ºÖ±½Ó¸ø¶ÔÏóÌí¼Óʼþ,½ÚµãÌí¼Óʼþ
ÀýÈç¸øÒ»¸öidΪtab1µÄÌí¼Óonclickʼþ
µÚÒ»ÖÖÇé¿ö£º
var
 t 
=
 document.getElementById(
"
NewTitle
"
);
t.onclick 
=
 
function
 showmsg(){
    alert(
'
Hello!World
'
);
}
~
µÚ¶þÖÖÇé¿ö ÕâÖÖÇé¿ö¸ü¼Ó¶¯Ì¬£¬¸üΪʵÓ㬶øÇÒ»¹ÄÜÌí¼Ó¶à¸öº¯Êý(Ìí¼ÓµÄʼþµÄ˳Ðò¼´Ö´ÐÐ˳Ðò)£¬ºÇºÇ
var
 tb 
=
 document.getElementById(
"
NewTitle
"
);
    
if
(window.addEventListener){ 
//
 Mozilla, Netscape, Firefox
        td_value.addEventListener(
'
click
'
, alert(
'
cc
'
), 
false
);
        td_value.addEventListener(
'
click
'
, alert(
'
cc
'
), 
false
);
    } 
else
 { 
//
 IE
        td_v ......

ÉîÈëdz³öJavaScript£¨Ò»£©

Beginning JavaScript with Dom Scripting and Ajax
ÉîÈëdz³öJavaScript
ͼÁé³ÌÐòÉè¼Æ´ÔÊé
    web¿ª·¢ÏµÁÐ
×÷Õß  Christian Heilmann [µÂ]
µÚÒ»Õ    JavaScriptÈëÃÅ
±¾ÕÂÖ÷Òª½éÉÜ£º
      * JavaSriptÊÇʲôÒÔ¼°ËüµÄ¹¦ÓÃ
      * JavaSriptµÄÓÅȱµã
      * ÈçºÎ°ÑJavaScriptÌí¼Óµ½Ò»¸öWebÎĵµÖУ¬JavaScriptµÄ»ù±¾Óï·¨
      * ÃæÏò¶ÔÏó±à³Ì£¨OOP£©ÓëJavaScriptµÄ¹ØÏµ
1. JavaScript µÄÌØµã
      ×î´óµÄÌØµã¾ÍÊÇ£¬Ò»µ©Ñ§»áÁËÈçºÎÔÚä¯ÀÀÆ÷ʹÓÃËü£¬¾Í¿ÉÒÔ°ÑËüÓ¦Óõ½ÆäËûÁìÓòÖС£Î¢ÈíµÄ·þÎñÆ÷£¨IIS£©Ê¹ÓÃJavaScriptÈ¥×ö·þÎñÆ÷¶ËÍøÒ³±à³Ì£¨ASP£©£¬PDFÎļþÏÖÔÚҲʹÓÃJavaScript£¬ÉõÖÁWindowsµÄÈÎÎñ¹ÜÀíÆ÷Ò²¿ÉÒÔʹÓÃJavaScript´úÂëÀ´×Ô¶¯ÔËÐС£Ðí¶àÓ¦ÓóÌÐò¶¼¿ÉÒÔʹÓÃËüÀ´±àд½Å±¾¡£²Ù×÷ϵͳÉϵÄÐí¶à²å¼þ£¬ÉõÖÁÔÊÐíʹÓÃJavaScript±àдСµÄ°ïÖú³ÌÐò¡£
      ÁíÒ»¸ö¸üºÃµÄÌØµã¾ÍÊÇ£¬JavaScript±È¸ß¼¶±à³ÌÓïÑԺͷþÎñÆ÷¶Ë±à³ÌÓïÑÔ¸üÈÝÒ׿ª·¢¡£Ëü²»ÐèÒªÏñJavaºÍC++ÄÇÑùµ ......

JavascriptÖÐ×î³£ÓõÄ55¸ö¾­µä¼¼ÇÉ

¡¾Ç°ÑÔ¡¿ºÃÎÄÕ£¬¾ÍÊÇÒªÂýÂýÑо¿£¬ËùÒÔÏÈת¹ýÀ´´æ×Å~
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 false;" ·ÀÖ¹¸´ÖÆ
5. <link rel="Shortcut Icon" href="favicon.ico"> IEµØÖ·À¸Ç°»»³É×Ô¼ºµÄͼ±ê
6. <link rel="Bookmark" href="favicon.ico"> ¿ÉÒÔÔÚÊղؼÐÖÐÏÔʾ³öÄãµÄͼ±ê
7. <input style="ime-mode:disabled"> ¹Ø±ÕÊäÈë·¨
8. ÓÀÔ¶¶¼»á´ø×Å¿ò¼Ü
<script language="JavaScript"><!--
if (window == top)top.location.href = "frames.htm"; //frames.htmΪ¿ò¼ÜÍøÒ³
// --></script>
9. ·ÀÖ¹±»ÈËframe
<SCRIPT LANGUAGE=JAVASCRIPT><!--
if (top.location != self.location)top.location=self.location;
// --></SCRIPT>
10. ÍøÒ³½«²»Äܱ»Áí´æÎª
<noscript><*** src="/*.html>";</***></noscript> ......

javascript >java

1.JSP
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <%
  ArrayList<String> list = new ArrayList<String>();
  list.add("aaa");
  list.add("bbb");
  list.add("ccc");
  list.add("ddd");
  list.add("eee");
  int num = 0;
  session.setAttribute("list",list);
  ArrayList<String> list2 = new ArrayList<String ......
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