console 命令行工具 X clear

console

<script>
class Person {
  constructor(name,age) {
  this.name = name;
  this.age = age;
    return this;
  }
  say() {
    alert('hola!')
  }
}
//how to use class
let dongnige = new Person('dongnige',18)
dongnige.say()
</script>