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getSpeed

描述

该方法是Vehicle对象的一个成员函数,用于获取当前车辆的速度。

参数

返回值

返回当前车辆的速度,单位为公里/小时(km/h)。

示例

以下示例代码展示了如何调用getSpeed方法并打印出车辆的当前速度:

let myCar = new Vehicle("BMW");
let speed = myCar.getSpeed();
console.log("当前车速为:" + speed + " km/h");

输出:

当前车速为:60 km/h

异常

备注

如果车辆当前没有运行,则返回值为0。

注意:该方法只能应用于Vehicle类型的对象。