function person (name,age) {
var obj=new Object();
obj.name=name;
obj.age=age;
obj.sayName=function () {
alert(this.name);
};
return obj;
}
var me=person("Su",25);
function Person (name,age) {
this.name=name;
this.age=age;
this.sayName=function () {
alert(this.name);
};
}
var me=new Person("Su",25);
function Person () {}
Person.prototype.name="Su";
Person.prototype.sayName=function () {
alert(this.name);}
var me =new Person();
function Person (name,age) {
this.name=name;
this.age=age;
}
Person.prototype={
constructor:Person,
sayName:function () {
alert(this.name);
}
}
var me=new Person("Su",25);
function Person (name,age) {
this.name=name;
this.age=age;
if (typeof this.sayName!="function") {
Person.prototype.sayName=function () {
alert(this.name);
}
}
}
var me =new Person("Su",25);
function person (name,age) {
var obj=new Object();
obj.name=name;
obj.age=age;
obj.sayName=function () {
alert(this.name);
};
return obj;
}
var me=new person("Su",25); //这里使用new操作符
function Person (name) {
var o=new Object();
o.sayName=function () {
alert(name);
}
return o;
}
var me=Person("Su");
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