var person = {
name: "江",
friends: ["B", "C", "D"]
};
var other = Object.create(person);
other.name = "张";
other.friends.push("E");
console.log(other.name);
var yet = Object.create(person);
yet.name = "王";
yet.friends.push("F");
console.log(yet.name);
console.log(person.name);