C#实例练习总结

实例1、交换俩个数的值

方法一、

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

namespace A
{
    class Program
    {
        static void Main(string[] args)
        {
            int number1 = 10;
            int number2 = 5;
            int number3 = 3;
            number3 = number1;
            number1 = number2;
            number2 = number3;

            Console.WriteLine("number1的值为："+number1);
            Console.WriteLine("number2的值为："+number2 );
            Console.ReadKey();

        }
    }
}

方法二、

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

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            int number1 = 10;
            int number2 = 5;

            number1 = number1 + number2;
            number2 = number1 - number2;
            number1 = number1 - number2;

            Console.WriteLine("number1的值为："+number1);
            Console.WriteLine("number2的值为："+number2);

            Console.ReadKey();

        }
    }
}

实例2、占位符连接字符信息

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

namespace A
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = "sophia";
            int age = 18;
            string E_mail = "[e-mail]";
            string dress = "钓鱼岛";
            double salary = 100;

            Console.WriteLine("姓名：" + name + "，年龄：" + age + ",邮箱：" + E_mail + ",地址：" + dress + "，工资" + salary);
            Console.ReadKey();
        }
    }
}

实例3、console.ReadLine  接收用户信息

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

namespace A
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("请问您喜欢吃什么水果？");
            string text = Console.ReadLine();
           // Console.WriteLine(text);
            Console.WriteLine("哈哈，这么巧我也喜欢吃"+text);
            Console.ReadKey();

        }
    }
}

实例4、console.readline()接收用户输入信息

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

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("请输入姓名：");

            string name = Console.ReadLine();

            Console.WriteLine("请输入性别：");

            string gender = Console.ReadLine();

            Console.WriteLine("请输入年龄：");

            string age = Console.ReadLine();

            Console.WriteLine("您好："+name+"您的年龄是"+age+"岁了，是"+gender);

            Console.ReadKey();
        }
    }

}