第十六节 流程控制 六

do while循环

do

{

//循环体

}

while（循环条件）;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace HE
{
    class Program
    {
        static void Main(string[] args)
        {
            int i = 1;
            int sum = 0;
            do
            {
                sum = sum + i;
                i++;

            }
            while(sum<=2005);
            Console.WriteLine("i={0}", i - 1);
        }
       
    }
}

　　for循环

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace HE
{
    class Program
    {
        static void Main(string[] args)
        {
            int sum = 0;
            for (int i = 1; i <= 100; i++)
            {
                sum = sum + i;
            }
            Console.WriteLine("sum={0}",sum);
        }

       
    }
}

　　for语句计算阶乘

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace HE
{
    class Program
    {
        static void Main(string[] args)
        {

            int n = Convert.ToInt32(Console.ReadLine());
            int cc = 1;
            for (int i = 1; i <=n; i++)
            {
                cc *= i;//cc=cc*n
            }
            Console.WriteLine("{0}！={1}",n,cc);
        }

       
    }
}

　　break：语句跳出循环体

continue 语句：中断本圈循环

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Xunhuan
{
    class Program
    {
        static void Main(string[] args)
        {
            //break
            for (int i = 123; i <= 10000; i++)
            {
                if ((i % 123 == 0) && (i % 76 == 0))
                {
                    Console.WriteLine(i);
                    break;
                }
            }
        }
    }
}

　　

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace c
{
    class Program
    {
        static void Main(string[] args)
        {
            //continue
            for (int i = 1; i < 10; i++)
            {
                if (i % 2 == 0)
                {
                    continue;
                }
                Console.WriteLine(i);
            }
        }
    }
}

　　

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace qiantao1
{
    class Program
    {
        static void Main(string[] args)
        {
            int x = 0, y, z = 0;
            while (x < 100)
            {
                y = 0;
                while(y<100)
                {
                    z = 100 - x - y;
                    if (5 * x + 3 * y + z / 3 == 100)
           
                        Console.WriteLine("x={0} y={1} z={2}", x, y, z);

                         y = y + 1;
                    
                }
                x = x + 1;
            }
        }
    }
}

　　C#勾股定理

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Gougu
{
    class Program
    {
        static void Main(string[] args)
        {
            for(int a=1;a<100;a++)
            {
                for (int b = 1; b < 100; b++)
                {
                    for (int c = 1; c < 100; c++)
                    {
                        if (a * a + b * b == c * c)
                            Console.WriteLine("a={0},b={1},c={2}", a, b, c);
                    }
                }
            }
                
        }
    }
}