[JavaScript]ÀàÖ®Ò»
Ò»¸ö¼òµ¥µÄjavascriptÀඨÒåÀý×Ó
º¸ÇÁËjavascript¹«ÓгÉÔ±¶¨Ò塢˽ÓгÉÔ±¶¨Òå¡¢ÌØÈ¨·½·¨¶¨ÒåµÄ¼òµ¥Ê¾Àý
Java´úÂë
<script>
//¶¨ÒåÒ»¸öjavascriptÀà
function JsClass(privateParam/* */,publicParam){//¹¹Ô캯Êý
var priMember = privateParam; //˽ÓбäÁ¿
this.pubMember = publicParam; //¹«¹²±äÁ¿
//¶¨Òå˽Óз½·¨
function priMethod(){
return "priMethod()";
}
//¶¨ÒåÌØÈ¨·½·¨
//ÌØÈ¨·½·¨¿ÉÒÔ·ÃÎÊËùÓгÉÔ±
this.privilegedMethod = function(){
var str = "ÕâÊÇÌØÈ¨·½·¨£¬ÎÒµ÷ÓÃÁË\n";
str += " ˽ÓбäÁ¿£º" + priMember +"\n";
str += " ˽Óз½·¨£º" + priMethod() +"\n";
str += " ¹«¹²±äÁ¿£º" + this.pubMember +"\n";
&nb
Ïà¹ØÎĵµ£º
javascriptµ÷Óø¸´°¿ÚµÄº¯ÊýºÍ±äÁ¿
·¢²¼ÈÕÆÚ£º2008-05-28×î½ü¸üУº2008-05-28À´Ô´£ºBHCODE×÷Õߣº
web¿ª·¢µÄʱºò£¬ÓÐʱºòÐèҪʹÓÃÆäËûÒ³ÃæÉÏдºÃµÄjavasriptº¯Êý¡¢±äÁ¿¡£È絯³ö´°¿ÚÐèҪʹÓø¸´°¿ÚÖеĺ¯Êý£¬¿ò¼Ü1ÐèҪʹÓÿò¼Ü2Öеĺ¯Êý¡£
µ÷Óú¯Êý¡¢±äÁ¿µÄ·½·¨Ò»Ñù£¬¶¼ÊÇÐèÒªÊ×ÏÈ»ñµÃÄãÐèÒªµ÷Óõĺ¯ÊýËùÔÚµÄwindow¶ÔÏó ......
¶¨ÒåÓëÓ÷¨
The prototype property allows you to add properties and methods to an
object.
prototypeÊôÐÔÔÊÐíÄãÏòÒ»¸ö¶ÔÏóÌí¼ÓÊôÐԺͷ½·¨
Syntax
Óï·¨
object.prototype.name=value
Example 1
ʵÀý
In this example we will show how to use the prototype property to add a
property to an object:
ÔÚÏÂ ......
·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£ ......
˼·£ºä¯ÀÀͼƬ£¬¶ÁÈ¡Æä¿í¶ÈImageW£¬¸ß¶ÈÖµImageH¡£¶ÁÈ¡Óû§ÊäÈëµÄ·Ö³É¼¸ÐÐRow¼¸ÁÐCol¡£
ÿ¸ö·½¿é£ºboxW=ImageW/Col£»boxH=ImageH/Row£»
ÔÚ1µ½Row*ColÖÐËæ»ú£¬µÚi¸öͼƬµÄλÖÃÉèΪpos¡¾i¡¿¡£È»ºó¶¯Ì¬´´½¨divÉú³ÉRow* ......
ÔÚwebÉϱàд²Ëµ¥Ò»Ö±ÊDZȽÏÍ·ÌÛµÄÊÂÇ飬ҪÊÇÓиöÀàÖ±½ÓÌ×ÓþͺÃÁË£¬×î½üÓÖÒª×öÍøÕ¾ÁË£¬·³ÈË£¬ÒªÇó×öµÄ»¹ÊǶ༶²Ëµ¥£¬°¦£¬·Ï»°ÉÙ˵£¬Óöµ½ÎÊÌâ¾ÍÒª½â¾ö°¡£¬¿´´úÂ룺
function is(e, handler) {
if (e.type != 'mouseout' && e.type != 'mouseover ......