}//定义静态方法Test,参数为任意类，功能是判断传进来的类 is class A/class B or not
static void Main(string[] args)
{
int k = (int)DateTime.Now.DayOfWeek;//获取代表星期几的返回值
switch (k)
{
case (int)Car.LimitedNumbers.Sun: Console.WriteLine("今天是星期日,双号限行"); break;
case (int)Car.LimitedNumbers.Mon: Console.WriteLine("今天是星期一，双号限行"); break;
case (int)Car.LimitedNumbers.Tue: Console.WriteLine("今天是星期二，单号限行"); break;
case (int)Car.LimitedNumbers.Wed: Console.WriteLine("今天是星期三，双号限行"); break;
case (int)Car.LimitedNumbers.Thi: Console.WriteLine("今天是星期四，单号限行"); break;
case (int)Car.LimitedNumbers.Fri: Console.WriteLine("今天是星期五，双号限行"); break;
case (int)Car.LimitedNumbers.Sat: Console.WriteLine("今天是星期六，单号限行"); break;
}
Console.ReadLine();
int m;
int.TryParse(Console.ReadLine(), out m);//获取代表汽车车型的返回值
switch (m)
{
case (int)Car.TypeOfCar.Mini: Console.WriteLine("车型：微型轿车"); break;
case (int)Car.TypeOfCar.Small: Console.WriteLine("车型：小型轿车"); break;
case (int)Car.TypeOfCar.Middle: Console.WriteLine("车型：中级轿车"); break;
case (int)Car.TypeOfCar.Intermediate: Console.WriteLine("车型：中高级轿车"); break;
case (int)Car.TypeOfCar.Limousine: Console.WriteLine("车型：高级轿车"); break;
}
Console.ReadLine();
Car car = new Car("BMW");
//创建实例对象car，名字为“宝马”
Car[] cartype = new Car[1];
//创建一维数组，存放了两个对象
cartype[0] = car;
//第一个对象——宝马
cartype[1] = new Car("BenZ");
//第二个对象——奔驰
string[] price = new string[] { "high", "medium", "low" };
//一维数组——价格“高”“中”“低”
int[] performence = new int[] { 1, 2, 3 };
//一维数组——性能“1”“2”“3”
char[] quality = new char[] { 'A', 'B', 'C' };
//一维数组——质量“A”“B”“C”
string[,] rank = new string[3, 3] {
{ "high", "1", "A" }, { "medium", "2", "B" }, { "low", "3", "C" }
};
//多维数组——价格、性能、质量三个一维数组组合成的数组
//委托——显示转换
Car.TypeOfCar car_1 = 0;
Car.TypeOfCar car_2 = (Car.TypeOfCar) 3;
Console.WriteLine(car_1);
Console.WriteLine(car_2);
int car_1_value = (int)Car.TypeOfCar.Mini;
Console.WriteLine(car_1_value);
Console.ReadLine();
//委托——隐式转换
int a = 100;
long b = a;
//委托——引用类型之间的转换
Minicar minicar_01 = new Minicar("Ferraria");
minicar_01.Name = "法拉利";
Car car_01 = minicar_01; //隐式转换
Car car_02 = new Car("Audi");
car_02.Name = "奥迪";
Minicar minicar_02 = (Minicar)car_02;//显示转换
Console.WriteLine(minicar_02.Name);
//Minicar minicar_03 = (Minicar)car_02; // 错误：转换失败！
Minicar[] MC1 = new Minicar[] { minicar_01, minicar_02 };
Car[] CC1 = MC1;
Minicar[] MC2 = (Minicar[])CC1;
Console.ReadLine();
//泛型类--stack<T>实例化
MyList <int> list = new MyList <int>(); //使用泛型类MyList<T>，来创建一个整数表
for (int q = 0; q < 10; q++) //通过简单地改变参数的类型
{
list.AddHead(q); //以创建字符串或其他自定义类型的表
}
foreach (int p in list)
{
Console.WriteLine(p);
}
Console.WriteLine("Done");
//操作符
bool[] x = new bool[5];
Console.WriteLine("请依次输入5位考官的评分，1通过，0不通过: ");
x[0] = (Console.ReadLine() == "1");
x[1] = (Console.ReadLine() == "1");
x[2] = (Console.ReadLine() == "1");
x[3] = (Console.ReadLine() == "1");
x[4] = (Console.ReadLine() == "1");
int i = 0;
bool result = (x[i++]) && (x[i++] || x[i]) && (x[++i] || x[++i]);
Console.WriteLine("考核结果为: {0}", result);
Console.WriteLine("判断次数为: {0}", i);
Console.ReadLine();
//as操作符
object[] objArray = new object[6]; //定义数组，该数组的长度为6，包含的数据类型为object
objArray[0] = new ClassA(); //第1个元素被赋予类A的一个对象
objArray[1] = new ClassB(); //第2个元素被赋予类B的一个对象
objArray[2] = "hello"; //第3个元素被赋予字符串
objArray[3] = 123; //第4个元素被赋予整型数据
objArray[4] = 123.4; //第5个元素被赋予浮点数
objArray[5] = null; //第6个元素被赋予空
for (int j = 0; j < objArray.Length; ++j) //遍历数组objArray
{
string s = objArray[j] as string; //把数组元算转换为字符串
Console.Write("{0}:", j); //输出该元算
if (s != null) //如果转换结果不为空
{
Console.WriteLine("'" + s + "'"); //输出转换结果
}
else//否则
{
Console.WriteLine("不是字符串");
}
}
Console.ReadKey();
//is操作符
ClassA a1 = new ClassA(); //声明类A的对象a1
ClassB b2 = new ClassB(); //声明类B的对象b1
Test(a1);
Test(b2);
Test("a string");
Console.ReadKey();
} //主函数
public void Test(ClassB x)
{
Console.WriteLine(MyProperty + ": " + x.MyProperty);
}
public ClassA(ClassB b)
{
_b = b;
}
