C# (CSharp) Ex3b TaxCalculator示例

示例#1

 public CashRegister()
 {
     this.taxCalc   = new TaxCalculator();
     this.billEntry = new BillEntryGenerator(this.taxCalc);
 }

示例#2

 public BillEntryGenerator(TaxCalculator taxCalc)
 {
     this.taxCalc = taxCalc;
 }