05. C#中的方法(1)

1.

namespace _05.方法_1_
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

         private void Form1_Load(object sender, EventArgs e)
        {
             MessageBox.Show("this is a Method");
        }
    }
}

2.

namespace _05.方法_1_
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

 

        private void Form1_Load(object sender, EventArgs e)
        {
            Method();
        }
        public static void Method()
        {
            MessageBox.Show("this is a Method");
        }
    }
}

3.帶傳回值得方法

namespace _05.方法_1_
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

 

        private void Form1_Load(object sender, EventArgs e)
        {
            MessageBox.Show("the time is " + Method());
        }
        public static DateTime Method()
        {
            return DateTime.Now;
        }
    }
}

4. 帶參數的方法

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

 

        private void Form1_Load(object sender, EventArgs e)
        {
            string TempName = "Me !";
            MyMethod(TempName);
        }
        public static void MyMethod(string AName)
        {
            MessageBox.Show("this is "+AName);
        }
    }

5. 帶有多參數的方法

namespace _05.方法_1_
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

 

        private void Form1_Load(object sender, EventArgs e)
        {
            int i = 5;
            int k = 6;
            MessageBox .Show(""+Add(i,k));
        }
        public static int Add(int i,int k)
        {
            return i + k;
        }
    }
}

 6.  共用參數

namespace _05.方法_1_
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

 

        private void Form1_Load(object sender, EventArgs e)
        {
            A a = new A();
            a.addi();
            A b = new A();
            b.addi();
            MessageBox.Show(""+A.i);
        }
        class A
        {
            public static int i = 0;
            public void addi()
            {
                i = i + 1;
            }
        }
    }

}