C＃如何在不創建實例的情況下訪問變量？

Question

這是我想做的事：

public class Worker 
{ 
    public int wage; 

    public void pay() 
    { 
     Economy.money -= this.wage; 
     // I want the money(of the economy) to be subtracted by the wage of the worker. 
    } 
} 

public class Economy 
{ 
    public int money; 
} 

我想，如果我能有超過1個經濟。

所以我想把工人的工資減去經濟（工人所屬的）的錢。

我該怎麼做？

Answer 1

如果你想要多個經濟體，那麼你需要一個能夠追蹤每個工人屬於哪個經濟體的財產。然後，您可以使用該參考來從正確的經濟中減去工資：

public class Worker { 

    public Economy InEconomy { get; private set; } 
    public int Wage { get; private set; } 

    // set the econdomy and wage in the constructor 
    public Worker(Economy economy, int wage) { 
     this.Wage = wage; 
     this.InEconomy = economy; 
    } 

    public void Pay() { 
     InEconomy.money -= this.Wage; 
    } 
} 

public class Economy { 
    public int money; 
}