namespace ConsoleApplication3 { class Class1 { private string _name; public string Name { get { return _name; } set { _name = value; } } private string _type; public string Type { get { return _type; }//取值 set { _type = value; }//赋值 } private string _food; public string Food { get { return _food; } set { if (value=="meat") { _food = "我吃肉!"; } else { _food = "我不吃别的!"; } } } } }
namespace ConsoleApplication3 { class Class2//function 重载 { public void function(string s) { Console.WriteLine(s); } public void function(string s,string s1) { Console.WriteLine(s+s1); } } }
namespace ConsoleApplication3 { class Class3 { /// <summary> /// 构造函数,每一个类至少有一个构造函数(class a = new class()),函数名字与类名相同,并且没有返回值,下面的public不写也可以默认存在,构造函数也可以重载 /// </summary> public void class4()//不是构造函数,是新的方法 { } public Class3()//默认的构造函数 { } public Class3(int a)//带参数的构造函数数 { Num1 = a; } public int Num1; public static int Num2;//静态成员,不随着NEW造对象走 } }
namespace ConsoleApplication3 { class Class4 { public Class4(string sname,string ssex,int sold) { name = sname; sex = ssex; old = sold; } public string name; public string sex; public int old; } }
namespace ConsoleApplication3 { class Program { static void Main(string[] args) { Class1 s = new Class1(); s.Food = "meat"; s.Name = "tiger"; s.Type = "less"; Console.WriteLine(s.Food);//以上为封装 Class2 data = new Class2(); data.function("123"); data.function("aaa"+"123");//函数重载 Class3 data1 = new Class3(); data1.Num1 = data1.Num1 + 3;//data1点不出Num2 Class3.Num2 += 3;//不通过data1,直接通过Class调用 Class3 data2 = new Class3(); data2.Num1 = data1.Num1 + 3; Class3.Num2 += 3;//静态成员Num2不随着造的对象走,Num2为3,3+3=6 Console.WriteLine(Class3.Num2);//为6 Console.WriteLine(data2.Num1); Console.WriteLine(data1.Num1); Class3 data4 = new Class3();//构造函数的重载 Class3 data3 = new Class3(2);//构造函数的重载有参数的 Console.WriteLine(data3.Num1);//构造函数结果为2,为某些成员变量赋初始值 Class4 t1 = new Class4("张三", "男", 18);//用构造函数给变量赋初始值 Class4 t2 = new Class4("李四", "女", 17); Console.WriteLine(t1.name+t1.old+t1.sex); Console.ReadLine(); } } }
时间: 2024-10-30 08:21:55