static void Main(string[] args)
{
PlayContext context = new PlayContext();
Console.WriteLine("上海滩：");
context.PlayText = "T 500 O 2 E 0.5 G 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 2 A 0.5 G 1 C 0.5 E 0.5 D 3 ";
AbstractExpression expression = null;
try
{
while (context.PlayText.Length > 0)
{
string str = context.PlayText.Substring(0, 1);
switch (str)
{
case "O":
expression = new Scale();
break;
case "T":
expression = new Speed();
break;
case "C":
case "D":
case "E":
case "F":
case "G":
case "A":
case "B":
case "P":
expression = new Note();
break;
}
expression.Interpret(context);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.WriteLine();
}
static void Main(string[] args)
{
//解释器模式
Context context = new Context();
IList <AbstractExpression> list = new List <AbstractExpression>();
list.Add(new TerminalExpression());
list.Add(new NotTerminalExpression());
list.Add(new NotTerminalExpression());
list.Add(new TerminalExpression());
list.Add(new TerminalExpression());
foreach (AbstractExpression item in list)
{
item.Interpret(context);
}
Console.WriteLine("*************************************\n\n");
PlayContext context1 = new PlayContext();
Console.WriteLine("上海滩:");
context1.Playtext = "O 2 E 0.5 G 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 2 A 0.5 G 1 C 0.5 E 0.5 D 3";
MusicExpression expression = null;
try
{
while (context1.Playtext.Length > 0)
{
string str = context1.Playtext.Substring(0, 1);
switch (str)
{
case "O":
expression = new Scale();
break;
case "C":
case "D":
case "E":
case "F":
case "G":
case "A":
case "B":
case "P":
expression = new Note();
break;
}
//if (expression != null)
{
expression.Interpret(context1);
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.Read();
}
