1. //基本示例
    2. class Person {
    3.     name: string;
    4.     age: number;
    6.     //构造函数
    7.     constructor(name: string, age: number) {
    8.         this.name = name;
    9.         this.age = age;
    10.     }
    11.     sayHello() {
    12.         console.log(this.name);
    13.     }
    14. }
    15. let zs: Person = new Person('张三', 18);