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    <script>

    //方法一  使用{}
        var people={
            name: '张三',
            sayhi: function(){
             console.log(this.name)
            }
        }
        console.log(people.name)
        console.log(people.sayhi())
    //方法二 使用new obeject方法
        var stu = new Object()
        stu.uname='孙'
        stu.sayhi = function(name){
            console.log(name)
        }
        stu.sayhi(stu.uname)
    //方法三 使用构造函数====>首字母要大写 个人感觉最好用
        function Start(uname,sex){
            this.uname=uname
            this.sex=sex
            this.sing=function(){
                console.log(this.uname+"****"+this.sex)
            }
        }
        var newstart = new Start('张三','sex')
        console.log(newstart.sex)
        console.log(newstart.sing())
    </script>
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js创建对象的三种方法_首字母