/// <summary>
/// 根据type类型，返回相应的运算器
/// 调用环境：有若干个dll文件，根据dll文件，拿到相应的运算器
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public ICaculator GetCaculataor(string type)
{
// 获得调用者，存放运算器dll程序集的目录
string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Plug");
// 获得所有的dll程序集文件
string[] allDllFile = Directory.GetFiles(path, "*.dll");
// 循环遍历所有文件，加载程序集文件，获取程序集对象
foreach (var file in allDllFile)
{
Assembly ass = Assembly.LoadFile(file);
// 循环遍历程序集中所有的类型，取出符合条件的类型，返回
foreach (Type t in ass.GetExportedTypes())
{
// 如果 t是ICaculataor的子类，且不是抽象类，且类型为所选类型，则取出，构造返回运算器
if (typeof(ICaculator).IsAssignableFrom(t) && !t.IsAbstract)
{
ICaculator cacu = (ICaculator)ass.CreateInstance(t.FullName);
if (cacu.CalType == type)
{
return(cacu);
}
}
}
}
return(null);
}
public void Run()
{
try
{
int count = 0;
Dictionary <string, QuestionType> questionMap = QuestionMap.GetQuestionMap();
IList <string> questions = InputLoader.LoadQuestions(ConstStr.QUESTIONFILEPATH);
IDictionary <MultplePrimKey, int> roads = InputLoader.LoadInputs(ConstStr.INPUTFILEPATH);
foreach (string key in questionMap.Keys)
{
count++;
ICaculator caculator = CaculatorFactory.Create(questionMap[key]);
caculator.LoadQuestionAndInput(questions[count - 1], roads);
caculatorEngine.AddCaculator(caculator);
}
caculatorEngine.Caculate();
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
public void AddCaculator(ICaculator caculator)
{
caculatorList.Add(caculator);
}
public Context(ICaculator _cal)
{
cal = _cal;
}
public void AddCaculator(ICaculator caculator)
{
caculatorList.Add(caculator);
}
