JavaScript对象属性(二)
对象object
例子一:
var car = {
"wheels":4,
"engines":1,
"seats":5
};
例子二:
var Car = function() {
this.wheels = 4;
this.engines = 1;
this.seats = 1;
};//构造函数
调用构造函数
var Car = function() {
this.wheels = 4;
this.engines = 1;
this.seats = 1;
};
var myCar=new Car();
myCar.nickname="aaaa";
注意:当 myCar
(即 Car
的一个 实例 )创建后,他可以像普通对象一样被使用,包括创建、访问、修改它的属性等,就像我们使用其他对象一样。
向构造函数中添加参数
var Car = function(wheels,seats,engines) {
//Change this constructor
this.wheels =wheels;
this.seats = seats;
this.engines = engines;
};