static void Main(string[] args)
{
PlayContext context = new PlayContext();
Console.WriteLine("上海滩： ");
context.PlayText = "O 2 E 0.5 A 3 E 0.5 G 0.5 D 3 E 0.5 G 0.5 A 0.5 O 3 C 1 O 1 A 0.5 G 1 C 0.5 E 0.5 D 3";
try
{
while (context.PlayText.Length > 0)
{
string str = context.PlayText.Substring(0, 1);
Expression expression = ExpressionFactory.CreateExpression(str);
//switch (str)
//{
// case "O":
// expression = new Sacle();
// break;
// case "C":
// case "D":
// case "E":
// case "F":
// case "G":
// case "A":
// case "B":
// expression = new Note();
// break;
//}
expression.Interpret(context);
}
}
catch (System.Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.Read();
}
public int Interpret(Dictionary <String, Expression> variables)
{
return(leftOperand.Interpret(variables) + rightOperand.Interpret(variables));
}
public int Interpret(Dictionary <string, Expression> context)
{
return(syntaxTree.Interpret(context));
}