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1. »ìºÏ¹¹Ô캯Êý/ÔÐÍ·½Ê½
function Car(sColor, iDoors, iMpg) {
this .color = sColor;
this .doors = iDoors;
this .mpg = iMpg;
this .drivers = new Array(“Mike”, “Sue”);
}
Car.prototype.showColor = function () {
alert( this .color);
};
var oCar1 = new Car(“red”, 4 , 23 );
var oCar2 = new Car(“blue”, 3 , 25 );
oCar1.drivers.push(“Matt”);
alert(oCar1.drivers); // outputs “Mike,Sue,Matt”
alert(oCar2.drivers); // outputs “Mike,Sue”
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2 . ¶¯Ì¬ÔÐÍ·½Ê½
function Car(sColor, iDoors, iMpg)
{
this .color = sColor;
this .doors = iDoors;
this .mpg = iMpg;
this .drivers = new Array(“Mike”, “Sue”);
if ( typeof Car._initialized == “undefined”)
{
Car.prototype.showColor = function ()
{
alert( this .color);
} ;
Car._initialized = true ;
}
}
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