【TypeScript入门】TypeScript入门篇——命名空间

// 定义一个名为Geometry的命名空间
namespace Geometry {
    // 定义一个名为Point的类
    export class Point {
        x: number;
        y: number;
        constructor(x: number, y: number) {
            this.x = x;
            this.y = y;
        }
    }

    // 定义一个名为Rectangle的类，继承自Point
    export class Rectangle extends Point {
        width: number;
        height: number;
        constructor(x: number, y: number, width: number, height: number) {
            super(x, y);
            this.width = width;
            this.height = height;
        }
    }
}

// 使用Geometry命名空间中的类
let point: Geometry.Point = new Geometry.Point(0, 0);
let rectangle: Geometry.Rectangle = new Geometry.Rectangle(0, 0, 100, 100);