1. // 类与接口
    3. export = {}
    5. // 建议一个接口只实现一个约束
    6. // interface EatAndRun {
    7. //     eat (food: string): void
    8. //     run (distance: number): void
    9. // }
    11. interface Eat {
    12.     eat (food: string): void
    13. }
    15. interface Run {
    16.     run (distance: number): void
    17. }
    19. // 实现了接口，就一定要有接口的内容
    20. class Person implements Eat, Run {
    21.     eat (food: string): void {
    22.         console.log(`优雅的进餐：${food}`)
    23.     }
    25.     run (distance: number) {
    26.         console.log(`直立行走：${distance}`)
    27.     }
    28. }
    30. class Animal implements Eat, Run {
    31.     eat (food: string): void {
    32.         console.log(`呼噜呼噜的吃：${food}`)
    33.     }
    35.     run (distance: number) {
    36.         console.log(`爬行：${distance}`)
    37.     }
    38. }