Object.prototype.getAttribute = function(attrName)
{
var attr = this[attrName];
return attr.length < 1 ? null : attr;
}
function Person(name)
{
this.name = name;
}
function Pig(weight)
{
this.weight = weight;
}
var man = new Person("Chan");
var pig = new Pig(200);alert(man.getAttribute("name"));
alert(pig.getAttribute("weight"));
{
var attr = this[attrName];
return attr.length < 1 ? null : attr;
}
function Person(name)
{
this.name = name;
}
function Pig(weight)
{
this.weight = weight;
}
var man = new Person("Chan");
var pig = new Pig(200);alert(man.getAttribute("name"));
alert(pig.getAttribute("weight"));
解决方案 »
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