<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Dogadd2</title>
<script> function Dog(name, breed, weight){
this.name = name;
this.breed = breed;
this.weight = weight;
}
Dog.prototype.species = "Canine";
Dog.prototype.bark = function(){
if (this.weight > 25){
console.log(this.name + " Woof");
} else {
console.log(this.name + " Yip!")
}
};
Dog.prototype.sitting = false;
Dog.prototype.sit = function(){
if (this.sitting){
console.log(this.name + " is already sitting");
} else {
this.sitting = true;
console.log(this.name + " is start sitting");
}
}; var fido = new Dog("fido", "mixed", 38);
var barnaby = new Dog("Barnaby", "Basset", 55); //构造继承小狗原型的表演犬原型
function ShowDog(name, breed, weight, handler){
//调用dog.call传入参数
Dog.call(this, name, breed, weight);
this.handler = handler;
} ShowDog.prototype = new Dog();
//constructor显式的设置构造函数
ShowDog.prototype.constructor = ShowDog; ShowDog.prototype.league = "Webville"; ShowDog.prototype.stack = function(){
console.log("Stack");
}; ShowDog.prototype.bait = function(){
console.log("Bait");
}; ShowDog.prototype.gait = function(){
console.log(kind + " ing");
}; ShowDog.prototype.groom = function(){
console.log("Groom");
}; var scotty = new ShowDog("Scotty", "Scottish Terrier", 35, "Cookie");
scotty.bark();
scotty.bait(); </script>
</head>
<body> </body>
</html>