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                            偽類

原型

    // 先構造一個對象，然后構造一些類似的對象
	var myMammal = { 
        name : 'Herb the Mammal', 
        get_name: function() {
        	return this.name;
        },
        says : function() {
        	return this.saying || ''; 
        }
     };
     
     // 差異化繼承
     var myCat = Object.create(myMammal);
     myCat.name = 'Herb';
     myCat.saying = 'meow';
     myCat.purr = function(n) { 
         var i, s = ''; 
         for(i = 0; i < n; i++) { 
             if(s) { 
             	s+='-'; 
             }
             s += 'r'; 
         } 
         return s; 
     };
     myCat.get_name = function() { 
     	return this.says + ' ' +this.name + ' ' + this.says; 
     };



     var mammal = function(spec) { 
         var that = {}; 
         that.get_name = function() { 
         	return spec.name;
         }; 
         that.says = function() { 
         	return spec.saying || ''; 
         }; 
         return that; 
     }; 
     var myMammal = mammal({name: 'Herb'});
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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