abstract class Salary{

    abstract ComputeBaseSalary():void;

    abstract ComputeDecuteSalary():void;

    abstract ComputeBonusSalary():void;

    //定义了通用实现与算法骨架，具体实现在子类中有差别

    ComputeSalary():void{

        console.log("开始计算工资");

        this.ComputeBaseSalary();

        this.ComputeDecuteSalary();

        this.ComputeBonusSalary();

    }

}

class ITSalary extends Salary{

    ComputeBaseSalary():void{

        console.log("IT基本工资");

    }

    ComputeDecuteSalary():void{

        console.log("IT没有提成");

    }

    ComputeBonusSalary():void{

        console.log("IT奖金");

    }

}

class SalesSalary extends Salary{

    ComputeBaseSalary():void{

        console.log("Sales基本工资");

    }

    ComputeDecuteSalary():void{

        console.log("Sales提成");

    }

    ComputeBonusSalary():void{

        console.log("Sales没有奖金");

    }

}

var itsalary=new ITSalary();

itsalary.ComputeSalary();

var salessalary=new SalesSalary();

salessalary.ComputeSalary();