马老师抽丝剥茧设计模式
class Dog {
kind = 'dog';
constructor(name) {
this.name = name;
this.legsNum = 4;
}
run() {
console.log("I am running with " + this.legsNum + " legs.")
}
say() {
console.log("Wang Wang, I am " + this.name);
}}const dog = new Dog('ming');dog.say();
