this.name?=?name;
this.age?=?age;
this.jobTime?=?jobTime;
}
Person.prototype.calc?=?calc;
var?zhangsan?=?new?Person?("張三",?28,?23);
var?result?=?zhangsan.calc(zhangsan.age,?zhangsan.jobTime);
console.log(result);
function?calc?(age,?now)?{
return?58?*?(age?-?now);
}