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JavaScriptµÄËùÓÐfunctionÀàÐ͵ĶÔÏó¶¼ÓÐÒ»¸öprototypeÊôÐÔ¡£Õâ¸öprototypeÊôÐÔ±¾ÉíÓÖÊÇÒ»¸ö object ÀàÐ͵ĶÔÏó£¬Òò´ËÎÒÃÇÒ²¿ÉÒÔ¸øÕâ¸ö prototype ¶ÔÏóÌí¼ÓÈÎÒâµÄÊôÐԺͷ½·¨¡£¼ÈÈ» prototypeÊǶÔÏóµÄ“Ô­ÐÍ”£¬ÄÇôÓɸú¯Êý¹¹Ôì³öÀ´µÄ¶ÔÏóÓ¦¸Ã¶¼»á¾ßÓÐÕâ¸ö“Ô­ÐÍ”µÄÌØÐÔ¡£ÊÂʵÉÏ£¬ÔÚ¹¹Ô캯ÊýµÄprototypeÉ϶¨ÒåµÄËùÓÐÊôÐԺͷ½·¨£¬¶¼ÊÇ¿ÉÒÔͨ¹ýÆä¹¹ÔìµÄ¶ÔÏóÖ±½Ó·ÃÎʺ͵÷Óõġ£Ò²¿ÉÒÔÕâô˵£¬prototypeÌṩÁËһȺͬÀà¶ÔÏó¹²ÏíÊôÐԺͷ½·¨µÄ»úÖÆ¡£ÔËÐÐÈçÏ´úÂ룬Ȼºó¹Û²ì¡£
 
<script language="javascript">
function person(name){        //¹¹Ô캯Êýperson
   this.name = name;
   //this´´½¨³öµÄ¶ÔÏó£¬Ã¿Ò»¸ö¸±±¾¶¼»á°üº¬ÆäÊôÐԺͺ¯Êý
   this.say = function(){alert("hello, i'm " + this.name);}
}
//prototype´´½¨µÄº¯Êý¶ÔÏó£¬ËùÓеĸ±±¾¹²Ïíͬһ¸öº¯Êý
person.prototype.show = function(){alert("hi~~, i'm " + this.name);}
 
var p1 = new person("p1");
var p2 = new person("p2");
alert(p1.say == p2.say); //false£¬Ã»¹²Ïíº¯Êý
alert(p1.show == p2.show);  //true£¬¹²Ïíº¯Êý
</script>
 
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<script language="javascript">
function person(name){
   this.name = name;
}
person.prototype.say = function(){alert("hello, i'm " + this.name);}
 
function employee(name, salary){
   //µ÷ÓÃperson×÷ΪemployeeµÄ¹¹Ô캯Êý——ÖØµã
   person.call(this, name);      //Ä¿µÄÊǼ̳ÐpersonµÄÊôÐÔ
   this.salary = salary;
}
//×ÓÀ๹Ô캯ÊýÊ×ÏÈÐèÒªÓÃÉϲ㹹Ô캯ÊýÀ´½¨Á¢ prototype¶ÔÏó£¬ÊµÏּ̳еĸÅÄî——ÖØµã
employee.prototype = new person(); //Ä¿µÄÊǼ̳ÐpersonµÄ·½·¨£¬Ö»ÐèÒªÆä prototype µÄ·½·¨£¬´Ë¶ÔÏóµÄ³ÉԱûÓÐÈκÎÒâÒ壡
employee.prototype.showMoney = function(){alert(this.name + "'s salary is " + this.salary);}
 
var bill = new pers


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