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  • 2012年3月1日c#基础练习

    namespace 对象的引用
    {
        class Program
        {
            static void Main(string[] args)
            {
                int i = 10;
                int j = i;
                i++;
                Console.WriteLine(j);//输出10值类型是传递拷贝,不能引用指向的值
                Person a = new Person();
                Person b = a;
                a.Shengao++;
                Console.WriteLine(b.Shengao);//对象是引用类型,是传递的引用。a变b变
                Console.ReadKey();
            }
        }
        class Person
        {
            private int shengao;
            public int Shengao
            {  
              set{this.shengao = value; }
              get { return shengao;}
            }
         
        }
    }

    namespace 练习33以后
    {
        enum pp { sasa=-100,dsf=200,fg}
        class Program
        {
            static void Main(string[] args)
            { 
                //练习33
                /*
                Persong p = new Persong();
                p.age=30;
                p.height=20;
                p.name="sadsaf";
                p.sayhello();
                 */
                Robot a = new Robot();
                a.fullleven = 1;
                a.Sayhello();
                a.Eatfood(4);
                while (true)
                {
                    string str = Console.ReadLine();
                    a.Speak(str);
                }
                Console.ReadKey();

            }
        }

    -----------------------------------------------------
        //练习33用的类
        /*
        class Persong
        {
           public int height;
           public int age;
           public  string name;

           public void sayhello()
            {
                Console.WriteLine("大家好我是{0}我的年龄是{1}我的身高是{2}",this.name,this.age,this.height);
            }
        }
         */
        class Robot
        {   public int fullleven;
            public string Name { get; set; }
            public  void Sayhello()
            {
                Console.WriteLine("大家好我叫xiaoai");
            }
            public void Eatfood( int food)
            {
                if(fullleven>100)
                {
                    Console.WriteLine("不吃了撑死了");
                }
                fullleven = fullleven + food;
            }
            public void Speak( string str)
            {
                if(fullleven<=0)
                {
                    Console.WriteLine("饿死了,不说了,你可以喂我点食物");
                    return;
                }
                if(str.Contains("名字"))
                {
                    this.Sayhello();
                }
                else if (str.Contains("老婆"))
                {
                    Console.WriteLine("我还小");
                }
                else
                {
                    Console.WriteLine("听不懂");


                }
                fullleven--;
            }
        }
    }

    --------------------------

    namespace 构造函数
    {
        class Program
        {
            static void Main(string[] args)
            {
                Person s = new Person();
                Person s1 = new Person("小狗");
                Person s2 = new Person("小猫",23);
                Console.WriteLine("{0}",s.Name);
                Console.WriteLine("{0}",s1.Name);
                Console.WriteLine("{0}{1}",s2.Name,s2.Age);
                Console.ReadKey();
            }
        }
        class Person
        {
            public string Name { get; set; }//属性,可以控制写与读提高安全性,字段不可控制
            public int Age { get; set; }
            public Person()
            {
                this.Name = "未命名";
            }
            public Person(string name)
            {
                this.Name = name;
            }
            public Person(string name,int age)//构造函数的作用是创建对象的同时可以对对象进行初始化
            {
                this.Name = name;
                this.Age = age;
            }
        }
    }

    -----------------------

    namespace 继承
    {
        class Program
        {
            static void Main(string[] args)
            {
                Person 人 = new Person();
                中国人 zgr = new 中国人();
                zgr.Name = "中国人";//子类可以用父类中的东西
                Console.WriteLine(zgr.Name);
                韩国人 hgr = new 韩国人();
                hgr.Name = "韩国人";
                Console.WriteLine(hgr.Name);
                Person ren = zgr;
                ren.Speak();
                zgr =(中国人)ren;
               
                Console.ReadKey();

            }
        }
        class Person
        {
            public string Name { get; set; }
            public void Speak()
            {
                Console.WriteLine("{0}",this.Name);
            }
        }
        class 中国人 : Person
        {
            public int Age { get; set; }
            public void Childage()
            {
                Console.WriteLine("中国人的年龄是{0}",this.Age);
            }
        }
        class 韩国人 : Person
        {
            public int Fl { get; set; }
            public void Hanguofl()
            {
                Console.WriteLine("韩国人的饭量是{0}",this.Fl);
            }
        }
    }

    ----------------------------------

    namespace 索引器
    {
        class Program
        {
            static void Main(string[] args)
            {
                Person a = new Person();
                a[1,1] = "哈哈";
                Console.WriteLine(a[1,1]);
                Console.ReadKey();
            }
        }
        class Person
        {
            public string name = "恭喜你中奖了";
            public string this[int x,int y]
            {
                set
                {
                    if (x==y)
                    {
                        name = value;
                    }
                    else
                    {
                        Console.WriteLine("dsf");
                    }
                }
                get
                {
                    return name;

                }
            }
        }

    }

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  • 原文地址:https://www.cnblogs.com/liujiaoxian/p/2378533.html
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