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// var person = {

// _age:10

// };

// Object.defineProperty(person, "age",

// {get:function(){

// return this._age + "岁";

// },

// set:function(newValue) {

// if (newValue < 0) {

// newValue = 0;

// }else if (newValue > 100) {

// newValue = 100;

// }

// this._age = newValue;

// }});

//

// person.age = 101;

// 构造函数的使用

function Person(name, age) {

this.name = name;

this.age = age;

this.sayHi = function() {

var temp = 'name: ' + this.name + " age: " + age + " say Hi!";

console.log(temp);

}

}

var person1 = new Person("name1", 12);

var person2 = new Person("name2", 13);

person1.sayHi();

person2.sayHi();

console.log('person1.constructor is Person : ' + person1.constructor == Person);

console.log('person2.constructor is Person : ' + person2.constructor == Person);

console.log('person1.constructor: ' + person1.constructor);