我不太確定爲什麼,但是當我放入中斷點並跨過我的代碼時,每個屬性都返回null或0當他們應該成爲我放在主要的地方,我瘋狂的類的實例。我的代碼沒有錯誤,但應該顯示的輸出沒有顯示
這是我的主
namespace DemoJobs
{
class Program
{
static void Main(string[] args)
{
string desc;
decimal rate, time, total;
Job job1 = new Job("Pour Driveway", 8m, 50.00m);
Job job2 = new Job("Instal New Windows", 18m, 120m);
Job job3 = job1 + job2;
Console.WriteLine("The {0} job will take {1} hours, costing {2} per hour with a total of {3}",
job1.Description, job1.Time, job1.Rate.ToString("C"), job1.Total.ToString("C"));
Console.WriteLine("The {0} job will take {1} hours, costing {2} per hour with a total of {3}",
job2.Description, job2.Time, job2.Rate.ToString("C"), job2.Total.ToString("C"));
Console.WriteLine("The {0} job will take {1} hours, costing {2} per hour with a total of {3}",
job3.Description, job3.Time, job3.Rate.ToString("C"), job3.Total.ToString("C"));
Console.ReadLine();
}
}
}
這是我的類
namespace DemoJobs
{
public class Job
{
// variables
private string _description;
private decimal _time, _rate, _total;
// property for the job description
public string Description
{
get { return _description; }
set { _description = value; }
}
// property for the total job time
public decimal Time
{
get { return _time; }
set { _time = value; CalcTotal(); }
}
// property for the jobs hourly rate
public decimal Rate
{
get { return _rate; }
set { _rate = value; CalcTotal(); }
}
// read-only property for the job total
public decimal Total
{
get { return _total; }
}
// method to calculate the total for the job
public decimal CalcTotal()
{
_total = _rate * _time;
return _total;
}
// constructor
public Job(string description, decimal time, decimal rate)
{
Description = _description;
Time = _time;
Rate = _rate;
}
public static Job operator +(Job job1, Job job2)
{
string newDescription = job1.Description + " and " + job2.Description;
decimal newTime = job1.Time + job2.Time;
decimal newRate = (job1.Rate + job2.Rate)/2;
decimal newTotalFee = newRate * newTime;
return (new Job(newDescription, newTime, newRate));
}
}
}
Hm no error?如果你有兩份工作時間和費率不同,那麼合併工作的比例不僅僅是兩份工作比率的平均值。 – 2012-02-18 22:34:37
問題有兩個部分,第二部分涉及對工作進行加權平均,以使總費用更準確。 – 2012-02-19 21:30:55