JavaScript定义类的两种方式
方式一
let Car = (function () {
    function Car() {
    }
    Car.prototype.moveCar = function () {
    }
    return Car;
})();
方式二
class Car {
    constructor() {
    }
    moveCar() {
    }
}
let Car = (function () {
    function Car() {
    }
    Car.prototype.moveCar = function () {
    }
    return Car;
})();
class Car {
    constructor() {
    }
    moveCar() {
    }
}
