Javascript创建自定义对象几种方式实例汇总

var student = new Object();
     student.name = "xiao ming";
     student.age = 20;
     student.getName = function () {
         alert(this.name);
     }

 var student = {
        name: "xiao hong",
        age: 18,
        getName: function () {
            alert(this.name);
        }
    };

  function Student(name,age) {
         this.name = name;
         this.age = age;
         this.sayName = function () {
             alert(this.name);
         }
     }
     var p3 = new Student("ming", 20);
     var p4 = new Student("hong", 18);
     alert(p3 instanceof Student); 
　　　　alert(p3.sayName==p4.sayName); //false

     function Student(name, age, friends) {
         this.name = name;
         this.age = age;
         this.friends = friends;
     }
     Student.prototype = {
         constructor: Student,
         sayName: function () {
             alert(this.name);
         }
     };